When a shot is recorded using a SCATT shooting trainer, the colored line visible on the target is the aiming trace. It shows how the aiming point moved in relation to the target before and immediately after the shot. At first glance, the display can look complicated, especially when several colors overlap in a small area. The colors are not separate scores or independent measurements. They identify consecutive time intervals within the same aiming movement.
The four-color aiming trace described in this article is used in the applications SCATT Expert, SCATT Expert for MX-W2, and SCATT Professional. The SCATT Basic trainer uses its dedicated software, the SCATT Basic, with a three-color trace: green before the final second, yellow throughout the final 1 second before the shot, and red for follow-through after the shot. In the four-color trace, the final 0.25 seconds before the shot are shown separately in blue.
For a shooter who has just started using SCATT, the colors are most useful as a way to understand the finest details of their movement. A change before the final second and a change in the final 0.25 seconds occur at different points in the shot sequence. Movement after the shot represents follow-through. The trace therefore gives you a timeline of the shot. Before trying to diagnose a technical problem, first learn to read that timeline in the correct order.
Reading the aiming trace in the interface
SCATT displays the movement of the aiming point relative to the target. After the shot, replay the trace to see how movement developed over time rather than judging the final shot position alone. Begin with the complete trace and notice the movement into and within the holding area. Then follow the colors in sequence. This gives each interval context and prevents a common mistake: focusing on one unusual-looking part of the line without understanding what happened immediately before or after it.
Read the sequence from green through yellow and blue to red. Green covers the recorded movement before the final second. Yellow begins 1.00 second before the shot and continues until 0.25 seconds before it. Blue covers the final 0.25 seconds before the shot. Red records follow-through after the shot. Yellow and blue together make up the final 1 second before the shot.
The “concentration” and “execution” labels are descriptive: holding and trigger work can begin earlier.
Green: before the final second
The green interval covers the recorded aiming movement before the final second. It can include the approach toward the target, settling, corrections, or already-established holding, depending on the shooter and shot. Look at the route into the holding area, the size and direction of corrections, and how the movement develops before yellow starts. A trace that wanders widely, crosses the target repeatedly, or approaches from very different directions from shot to shot may be worth closer attention, but green should not be judged by length alone. Different disciplines, positions, and individual routines naturally produce different movement patterns.
A more useful question is how repeatable the green movement is and how it relates to the later yellow interval. Compare several similar shots rather than searching for one ideal-looking green line. If green repeatedly shows movement within a similar area and leads into a consistent yellow interval, that relationship is more useful for training than the appearance of any single trace.
Yellow: from 1.00 to 0.25 seconds before the shot
Yellow begins 1.00 second before the shot and ends 0.25 seconds before it. This interval helps you examine the movement pattern established immediately before blue, within trigger work. Look at where the yellow movement is concentrated, how widely it moves, and whether its position and shape are similar across comparable shots. A tighter concentration means the aiming point is moving within a smaller area, while a wide or scattered yellow trace indicates a larger area of movement.
Yellow is especially important because it provides the reference for reading blue. To judge whether movement changed during the blue interval, first examine the movement that was already present. Instead of asking whether yellow looks neat, ask whether movement is concentrated in the intended holding area, whether large corrections remain, and whether the same pattern appears repeatedly. This shifts the analysis from a visual impression toward a specific comparison between shots.
Blue: the final 0.25 seconds before the shot
Blue represents exactly the final 0.25 seconds before the shot. This interval is useful for examining how the aiming movement and trigger work evolve immediately before the shot. Read blue directly against the preceding yellow interval. If blue stays within the yellow holding area with a similar movement pattern, it shows continuity with that interval. If its position, direction, or movement characteristics change relative to yellow, the aiming movement changed during the final 0.25 seconds.
The length of the blue line should never be interpreted on its own. A short blue trace is not automatically proof of good technique, just as a longer trace does not automatically identify a specific technical error. Its direction, position, and relationship to yellow are what matter. Blue shows the movement during the final 0.25 seconds. Determining why a change occurred requires comparison across several shots, observation of the shooter, and other relevant training information.
Red: after the shot
The red interval begins after the shot and shows the movement recorded during follow-through. New users sometimes ignore this part because the shot has already been released, but the movement immediately afterward is still part of the recorded shot sequence. Red can help you review whether the aiming point continues moving in a controlled, repeatable way or whether the trace changes sharply as soon as the shot occurs. It is most useful when compared with the earlier intervals rather than treated as a separate measurement.
Look for consistency across comparable shots. If yellow and blue develop in a similar way but the red trace changes dramatically from shot to shot, that difference may deserve closer attention. As with the other colors, the trace itself shows the movement, not the exact technical cause. It gives the shooter and coach an objective record that can be compared with what was observed or felt during the shot.
Compare patterns, not isolated shots
One SCATT trace describes one shot. Training decisions become more reliable when the same pattern appears repeatedly under similar conditions. If the blue trace leaves the yellow holding area once, that is an observation. If it happens repeatedly in a similar way across a series, it becomes a pattern worth investigating. The same principle applies to green, yellow, and red. A recurring approach pattern, a hold consistently displaced from the intended area, or a repeated change immediately after the shot provides much more useful information than one unusually good or poor-looking trace.
This is also why the goal should not be to create the neatest possible line on the screen. A compact trace is not automatically technically better, and a less tidy trace is not automatically worse. SCATT is most useful when it helps you compare timing, relationships between intervals, and repeatability of movement.
Use the colors to narrow the training question
The aiming trace shows when and where movement changed, how its pattern changed, and whether that pattern repeats. It does not automatically identify the exact cause. A blue trace that repeatedly leaves the established yellow holding area, for example, shows that the change occurred during the final 0.25 seconds before the shot. Possible causes may involve trigger work, sight control, position, timing, muscle tension, or a combination of factors. The same distinction between observation and diagnosis applies to every color interval.
A practical review therefore follows a simple sequence. Replay the shot and read the trace chronologically: green, yellow, blue, then red in SCATT Expert, or green, yellow, then red in SCATT Basic. Identify the interval in which the movement changes. Compare the same interval across several similar shots and determine whether the pattern repeats. Then investigate possible technical causes or discuss the observation with a coach. Used this way, the colors make the SCATT interface easier to understand, while the aiming trace provides objective evidence to support training and coaching.
