[Gary Wells]

It has been proven that FLGRs in general neither help nor hurt accuracy.

It is impossible for a .45 auto recoil spring to bind & / or kink inside the gun with a GI type guide rod unless it was kinked before installation.

2 piece FLGRs are considered inferior to 1 pc guide rods by many as they can come apart and / or loose, and require a allen wrench for assembly and disassembly.

.45 autos having 2 piece FLGRs in most cases are easier to assemble and disassemble than those that do not have a FLGR. Depends mostly on the experience of the shooter in which system he has the most time with assembly &/or disassembly. Heavier spring rates are more difficult.

FLGRs add a little weight to the muzzle end of the gun, thus reducing recoil tip-up and aiding in the back on target time.

FLGRs can and probably will smooth out the cycling a tad.

Some FLGRs are available in tungsten, increasing the weight at the muzzle a tad more.

Most of the gamers and competition shooters use them in one form or another.

They do remove the "twang" sound when cycling your .45 auto by hand if it does so. Some .45 autos have that "Twang" and some don't. That is the recoil spring rubbing against the frame recoil spring tunnel generally.

I neither recommend nor not recommend the use FLGRs. Regardless of what others tell you it is strictly a matter of personal preference.

FLGRs do have quite a few haters, that's for sure.

FWIW, I use FLGRs in all 5 of my 1911 platform .45 autos.