That actually makes a lot of sense. The breaches in the 05 interceptors were tighter than in most markers, which causes larger paintballs to drag on the side and reach the bottom of the chamber more slowly. So, it would break the eye beam a signifigant length of time before being in a shooting position, so the bolt would fire too early and chop. Fix is to increase the ball in place delay, which won't hurt performance at all.
This has been fixed on the 06 and Remains.