How do you figure that?
I would think a Caspian with all the extra heavy parts, Light slide, and a light recoil master would be much softer, just make sure you have a high ride safety . Heck my SVI with a KKM tungsten barrel is softer than a Glock 20, you throw Grams tungsten magwell on any S_I gun and it softens them up quite a bit.
If you want to stay in open I think the .40 is a good choice. With 170mm mags you can still get enough rounds in it to be competitive, the brass is cheap too