The Microsight was definitely part of the winning formula in this case, but in truth having the bigger, good-quality adjustable iris closer to my eye might have been the bigger factor. Adjusting the aperture size for maximum depth-of-field with available light is the key.At my age I most often take the next step - a match-type diopter sight with a 1.5x magnifying iris - which is even better than the Microsight (but illegal at a high-level match, which is the main reason the Microsight was invented in the first place).
"a match-type diopter sight with a 1.5x magnifying iris"Is that something that would fit a Williams peep sight? If so, where to get them and approximate cost?
Chris: I'm not sure from reading your post which type of "iron sights" you mean? Having the rear sight out of focus is bad if you are using an open notch sight mounted forward on the gun, but good if using an aperture "peep" sight mounted toward the rear. Eliminating one plane of focus is a significant advantage of peep sights. With a notch, you must have some level of clarity simultaneously for the rear sight, front sight, and target - impossible after a certain age! With a peep you just put the front sight on the target and the eye magically centers things up in the fuzzy hole at the rear.
Seeing a lot of MDriskill's cool sights made me want something too so I gave this Gehmann 522 adjustable front iris a try. In the picture I posted above you can see a lot of "daylight" between the bull's eye and the OEM front sight ring. This little gadget provides an adjustable ring without bars so that gap around the bull can be easily tightened down. I find shrinking the daylight area to about half the above pic's suits me best.