Thank you both for the reply.
Yes, it seems the Midway site does give that info all in one spot! Nice.
I was surprised by the 1190fps claim on the WWB! This was one that Schmekey often referred to as giving low power issues in the CZ's. I have run it before without issue, though.
That is a 137 PF if correct. The Perfecta would be at 120.
Transformed the gun with proper operation and ejection pattern as compared to dumping brass on my feet. It is not like one is able to run out and buy light recoil springs for a Canik TP9, or a Walther either it seems.
I would need to refer back to ID's recent dissertation about recoil and all that, but in general terms I believe this basic power factor equation relates heavily into simply making your average gun function without modifications, specially our euro imports that are probably built around something closer to Nato spec ammo.
The Win 124 gr is listed at 1140 fps as well, 141 PF!