I don't notice any difference in how the gun feels with hydra shoks versus FMJs. The difference I notice is, some FMJs stove pipe after 100 or so rounds, especially when it is hot out. I have never had a hydra shok stove pipe.
Recoil seems the same. I believe the hydras are 230 grain as well.
On another note, my dad gave me an old Stallard Arms 9mm. Thing is straight up ghetto and heavy as hell, and I was almost afraid to shoot it. It is the kind of gun you would buy out of a trunk in philly. He took it to a gun store and they told him they wouldn't give him $20 for it. Too bad for them as I got it and the thing shoots amazing. No jams, and the weight makes it much easier to handle. Thing is tight as well, put them all where I wanted. Nothing but bad press online about it, but I love it. Funny how that works. Could never carry it, but it makes for a nice home-defense back-up weapon and runs the same ammo as my 9mm carbine.