LOL, I get a kick about the myths of FLGRs and JMB. That JMB's design can't be improved is one of the funniest, however. ery early on it was noted that numerous changes needed to be made. Besides, much of the 1911 wasn't JMB's idea, but the military's.
I have them in some of my 1911s and I like how they affect perceived recoil. I can still break down my guns with my eyes closed/in the dark, as if that matters or is a need, LOL, and with no special tools.
I have tried that behind the back business, but can't say there is any need for that either and when you drop a part, it is harder to find.
There are some strange standards by which we guage whether something is appropriate.
"If you look through your scope and see your shoe, aim higher."
-- said to me by my 11 year old daughter before going out for hogs 8/13/2011