Hi Todd,
Take .25 degrees of positive out of the wing and reset the stab so the elevator flys just a little down trim. When you roll inverted the same thing will happen so you will end up needing to move the CG aft to get the feel you want. I only recommend resetting the wing because it sounds slightly exceesive but will probably not change the feel when inverted, you will end up moving the CG back. I assume also that the .25 of stab was .25 degrees and not 1/4 inch, correct?

The reason I set the stab to run some down elevator trim is I want my plane to be in perfect trim elevator trim from 1/3 throttle all the way to full throttle and at the changing airspeeds. This also makes the plane go straight up, no pitching. Basically I am flying with a cambered stab when setting it this way.

Bill