I have a P09 with all the CGW parts you can use and still be production legal.
Short reset kit, sights, springs, DA roller bearing, etc. I did all the polishing and tuning myself (done by them for a little bit more) and it shoots like a DREAM.
It has a different felt recoil than the SP01. to me it feels that the P09 is flatter shooting, but I could be wrong.