IMO,
As long as it doesn't hurt reliability, in an aluminum framed firearm, it can't hurt.
I think that it is fact that it has to reduce the hammering of the slide dust cover/spring pocket into the frame.
Although it does reduce a small amount (about .200") of the full travel of the recoil spring.
The physics of the spring doing it's "WORK" (Hooke's law of elasticity and spring "K" constant) is almost done at that point
where the spring is so far compressed with the slide that far back and the slide has almost de-accelerated to it's stop point.
(If the recoil spring is strong enough for the load being used)
Hooke's law - Wikipedia, the free encyclopedia
I use Buffer Technologies buffers in my;
3913 NL converted to .356 TSW
CS-40 converted to 10 mm
All the conversions that I do on the 4013 "Single Stacks" to 10 mm
My 5903 Wesman Special 5.00" and shot over 600 rounds since Thursday with sighting, targeting and two plate/pin matches Friday night and Saturday.
Field stripped each session to clean it and the buffer looks beautiful.
If you see it disintegrating with limited use, then you probably need a stronger recoil spring to start with,
with plus power springs, lock-up time will be lengthened and your firearm accuracy will also increase (physics).
I even put one in my 356 Limited that I converted to 9mm, and that one is all St. St.
In both 5.00" firearms it is noticeably faster to get back on target for rapid fire/accuracy.
Just my .02¢'s
Regards,
BM1