FLGRs suck ass! They are worse than worthless! No one ever has proved that they do anything for accuracy or reliability, and no one ever will...because they don't! Where is the Ransom Rest test with the same exact gun and ammo with, and without, this gizmo? Nowhere, that's where, because NO tests have proved its worth! They are a crutch for sub-standard builders ...and a money-maker for guys like Ed Brown...who is definitely NOT a sub-standard builder!
"Frame savers" are also worthless, unless you do nothing except shoot thousands of rounds of full power ammo...in which case they may...I repeat, MAY... save your frame for a few thousand rounds more before it cracks...but those few thousand rounds are meaningless if you shoot, say, three to five thousand a month, anyway.
The 1911 works just fine in GI trim if you use ball ammo, and works very well with modern JHPs if made by others who understand the design, Ed Brown is most assuredly one who does, but so are Wilson, Kimber, (seriesI) and others.
TexasSIG is a good guy, but he is just wrong this time!