Our T-33 was the original with the under camber, but yes, we did the mod as instruced on the BVM website. Actually, that didn't seem to effect the bounce issue. I think that Rcpete's suggestion of moving the CG aft is a good one. Our T-33 had the older style fuel tanks with a large one up front that drained first. If you tried to land it early in the flight when the CG was forward, it was almost always a disaster. The new model has saddle tanks that reduce the CG shift with fuel burn, but staying towards the aft side of CG range will help keep the nose up on landings I think.

Like I said, many jet models have the bounce issue. My son's A10X had it bad and I did it at Florida Jets (distracted during the flare) and damaged the model quite a bit. A well executed T-33 landing is a thing of beauty though and if you can land that consistently, you can land just about any jet...

Bob