Anyone using a recoil master in a 5" non-STI 1911?

[RickT]

I'm asking because when I run comparable below factory loads through my Staccato C2 and Springfield 9mm 1911 the C2 sight picture is steady as a rock while I get some excursion with the Springer.  I've run all manner of recoil springs in my 1911 and it may be that I need a slightly stouter spring, but I've never fired an iron sight gun that exhibited so little recoil.  I wouldn't mind trying the RM in the 1911 and I've seen advertisements that said "some fitting may be required" for non-STIs, but looking for personal experience.

[galt11]

I've run one in an older (early 2000s) Kimber for at least the last 10 tears and love it.  As you may have read the recoil impulse is a bit different from a standard guide rod and spring setup.  However, once you get used to it, I don't even notice it.  I love how it allows me to run all variety of loads in the gun without having to change spring weights.

 

Adam