follow up... shot my first match with the fixed sight MKIV, and I have some "learnin" to do... for 25+ years I shot black front post fixed sighted pistols, but with declining eyesight opted for dot scopes when I started in Steel Challenge... now with cataract surgery and good vision again, I am now tending back to fixed sighted rim fires, but with the change to fiber optic front sights... herein is my new learning curve... for all the years I shot the top of the front sight, but now with the dot placed lower on the post, need to get the dot on target... Friday on the 5 to Go stage, I was still trying to hold the top, and the way I had sighted the pistol in (dot) caused my shots to go low...got most of my act together by the end of the match...still good fun... the MKIV is now just a plain Jane pistol, but I think it will get most of the use from now on... it won't produce the fastest times , but probably provide more satisfaction... regards Les