First, a recoil spring won't "bind" in a GI setup (by the time it gets close to complete compression, it's almost totaly encased within the plug with the guide rod up thru the center.....no place for the spring to go, other than where it's supposed to! ).
I've run both FLGR and GI setups. A FLGR SLIGHTLY complicates disassembly. On the other hand it does absolutely NOTHING to improve lock-up "tightness", spring life, remove crab grass, replace balding hair or improve your sex life (unless both you and your significant other absolutely love a dead-sexy FLGR
). It's said that a FLGR improves feeding and extraction......it feeds the dealer who's selling it to you and exatracts $$$ from your wallet!
On the other hand, a GI plug assembly allows you to do two things that you can't do with a FLGR setup. By pressing the lower edge of the slide (directly on the plug) against a hard object, like a table edge for instance, you can cycle the pistol one handed. Also, my preferred way of doing a "press-check" is to hook the thumb of my non-shooting hand in the trigger guard, reach forward with the index finger of the same hand, place my fingertip on the plug and gently squeeze. No danger of sticking a finger or two in front of the "loud end" of the barrel, that way.
YYMV, though........ LOL