Personally, I don't like the P64. I've had 4 of them, tried various spring combinations, and never found a combo that worked well for me. The SA trigger is practically a "hair trigger". With the heavy recoil, it's rather hard to get off a single shot, rather than a double tap. My SMC-918, from FEG is much nicer to shoot, and PPK sized also. No comparison in my mind.
Brent