Any feed ramp work or other gunsmithing that would let it shoot JHPs?
The problem with .32 hollowpoints is that the cartridge OAL (Overall Length) is much shorter than the FMJ cartridge OAL. When .32 HPs are loaded in the magazine, there is a lot of front-to-back play which allows the rim of one cartridge to slip over the rim of the next cartridge. This causes the rims to lock, hence the term "rimlock". The firearm needs to be dis-assembled in order to free the locked rims.
Kel-Tec makes a strip of plastic called a "spacer" that fits in the magazine to take up excess space when loaded with hollowpoints. This cures the rimlock issue.
There is no cure, however, for the .32 HPs poor expansion and penetration. FMJ is the way to go for this caliber.