Depends on use. And finished weight desires. PRS? You can add weight kits lessen recoil and jump. Hunting? I like the PRS1.
I am a full stock kind of guy myself, but that MPA is sweet looking. I have a similar build that is close to completion in 6CM w. A PRS2 stock, LP Fuzion TI, 24" Proof. Varmint and deer/antelope rifle.