I shot mine today with the Glock 4# spring and new Glock spring keepers. Shot fine, but this isn't enough rounds yet to confirm it is completely OK. Next is an EarlAn357 polish job. The trigger pull is pretty good with the Glock spring. I couldn't hardly shoot the gun with the factory spring back in it for ONE range trip.
I'm waiting for David's parts before I spend much more time with it. It needs the polish job, a red dot sight, and some barrel fitting, before I will be able to shoot it as well as the P-07.
Joe