doubleh
While I don't actually hate them I have found that the flat mainspring housing fits my hand the best. The one that feels the worse is the Bobcat style of mainspring housing/grip frame configuration. Feels like it's trying to dig a hole in the middle of my hand with every shot I take.
First things I did to my Colt Combat Commander were replace the factory walnut grips with a pair of Pachmayrs (with the front rubber strap removed), swap out the mainspring housing with a flat rubberized one, and switch the factory magazine with a Pachmayr magazine. I seem to recall all these Pachmayr parts came altogether in one DIY conversion kit.