CURVED MAINSPRING HOUSING OR STRAIGHT?

CURVED MAINSPRING HOUSING OR STRAIGHT?  Bullseye shooting, which do you prefer?   WHY?

My preference is straight because I have a fat hand!

Arched. Because my hands are skinny

IMO it depends as much on your wrist as the meatiness of your hand. MSH's are inexpensive and easy to change so get both and try them. Hold the gun up with a comfortable grip and wrist position. Which one has the sights closer to aligned, or dot closest to the center.

Cmysix wrote:CURVED MAINSPRING HOUSING OR STRAIGHT?  Bullseye shooting, which do you prefer?   WHY?

For me it’s a preference thing. I much prefer an arched mainspring housing over flat but I’m fine with a flat. Used a flat mainspring housing for years and thousands of rounds because they came with my 1911s. Only recently, I’ve changed to the arched because my Springfield Milspec allowed me to try it out some more before committing to changing them.
I have noticed small improvements down range after swapping the mainsprings and faster splits before ammo disappeared.

My personal choice is arched. because of how little my hands are.

I’ve always preferred flat but can shoot either. I have large hand with long fingers.
I typically recommend flat MSH to shooters with smaller hands. I think it boils down to your grip during recoil. If you hand is smaller the arched housing may slide in your hand during recoil. Serrated may not work as well as checkered with arched.
99% of all the pistols I build are flat MSH.
Jon

Jon I think there's one more MSH to include also, it's Wilson's V-grip. It's basically a flat that is thicker at the bottom and taper down at the top. They say it forces the hand up higher on the pistol, maybe better for smaller hands and shorter fingers. Does anyone have experience with this one also?
Stan