For striker fired handguns - I've owned Glocks (19s, 43, 43x), Sigs (P320, P365, P365XL, P 365 Legion), FN (509 tactical w/ flat OEM triggers, 510), Walthers (PPS M2, PPQ compact, PDP Compact 4", PDP FS, PDP-F 3.5", PDP Pro compact). I've shot M&Ps and H&K.
Of all those, I've found the...