Greeting's!
I have been shooting the SIG-SAUER P220A in .45ACP for a very long
time; while I won't say that the SIG's DA pull is the finest available,
I've been pleasantly surprised with my West German version P220.
While certainly not "slick as a babys butt", it does not have any
creep in its rearward travel.
And in the single-action mode, it breaks very cleanly, for positive
control of the weapon.
Best Wishes,
Ala Dan, N.R.A. Life Member