LibertyShip, for some years I have been avoiding part of the note keeping for receiver sights by using automotive pin striping tape to mark the slide. Sight in for any given range, place a small piece of colored tape across the moveable staff and base, then cut the tape with a single edged razor blade, cutting between the staff and base, of course. Resight for the next range, repeat with a different color tape. Generally you can get four or five different settings this way, and if you record what range each color stands for on a business card, then tape it to the stock, counting clicks is a thing of the past. Works for me. Oh, thin pieces of colored electricians tape work as well as the pin striping stuff, and is easier to find.
I have one of the FP sights on order for my .38-55 Target Model. Can hardly wait for it to get here.
Best to all,
Ernie