I am doing intermediate sequence this year and I have a problem with my new airplane, a CAP 232 25%.

The snap roll in the goldfish goes correctly but as soon as I do my reverse half roll, on the 45 deg upline, the aircraft pitches down to the belly very much . In other words, the aircraft climbs on an inverted 45 deg upline .

The first thing I did is check my CG. When going full throttle on level flight, I chop the throttle instantly, and see what appens. The aircraft instantly pitches up SLIGHTLY and then stays SLIGHTLY nose up for a good moment (5 to 8 seconds). It made me think my CG is a tad on the aft side.

Am I correct saying this

Any help would be greatfull.
Could this also be a thrustline issue ??