Hi
I have the same problem with my rolls, i cant even get a normal roll to look right.

What i have been trying to do is.

Applying rudder from 45 degrees reaching peak at 90 degrees reducing to zero at 135 degrees
applying down elevator increasing from 135 degrees reaching peak at 180 degrees and back to zero at 225 degrees
applying opposite rudder increasing from 225 degrees reaching peak 270 degrees feathering back to zero at 315 degrees
then gradually applying up elevator as appropriate as you reach upright

Am I on the right track or have I got it completely wrong?

M