I haven’t, really due to never having felt the need to do anything different than 3 moa for a pistol.
Not saying I wouldn’t try it if someone around me had one.
I also have many thousands of rounds with using 1 and 2 moa red dots on rifles, having never wanted any bigger for that application, so 3 to me is actually plenty large enuff. I’ve always taken red dots to much farther distances and to much smaller targets than most people will ever try, including with pistols. I’ve always preferred a very fine and crisp aiming point, which must be why I like my P5FL reticle in my S&B 6-36 so well.