Didn't care much for the two-piece style FLGR that came on my full-sized "Loaded" Springfield. If I didn't remember to put a drop of 'red' Loctite on the threads, it'd work itself loose after two of three mags-full. Replaced it with a GI-type guide and spring retainer cap. Have yet to see any noticable difference in functional reliability or accuracy since. Easier to do a quick press check, rack one-handed, etc., too. OMMV, but I'm going to stick with "Shorty".
May be that mine was out-of-spec somehow, but it did loosen enough to protrude about 1/8" or a bit more from the recoil spring cap if it wasn't Loctited. BTW: You're right; I just checked my bottle and the fluid itself is blue. It's the bottle that's red. Senior moments happen. My bad.