Just finished some mods to the RIA 10mm.
Changed out the MSH to an Ed Brown chain-link design. I also included one for my Kimber stainless.
Modified (dremeled) the feed ramp and mouth of the barrel, just enough to reduce any snagging of any flat nose bullets.
Installed the 20lb recoil spring.
Changed out the sear spring to a Wolff.
Out of pocket upgrades:
20lb spring $7.89
Sear Spring $6.49
Future mods: new hammer springs, 3 pack with different lbs $8.99, are on the way (along with a digital trigger gauge).