Good info here, after turning 40 the eye sight started going down hill. I'll deal with glasses when I need them for now but will get my eyes done eventually.
I snagged one of the 403 ones I linked, I don't shoot prs but will use it for range time, coyote and blind hunting. So far just messing with setup and features it will work perfectly for me, arca/pic clamp is solid and ballhead locks up tight.