I think you are now beyond the Pulse, thanks to your ability with the Stik.

Neither the Stiks nor the Pulse are good at knife edge.

The Stik because of the high wing configuration and small dihedral.

The Pulse because of the low wing with higher dihedral.

An Extra or other mid wing, straight winged plane would give you better knife edge response.

My Yaks seem to behave exactly the same upright or inverted, neither nosing up or down in either position, which is what you want in a good 3D plane.

My Extras tend to drop the nose a bit inverted.

Both will knife edge quite well, though the Yak seems to have it over the Extra.