I shoot 45-08 and have no such anxieties. Of course if the manufacturers of the 460 Rowland "kit" tell you that you need their product it's best to heed and pay up right?
Lol yea, seems more like Rowland is more bum hurt than anything. After swapping out a recoiled spring, I don't see a comp doing much in the way of slowing down a slide.
Interested to hear more about wear on the slides and such...what are you shooting them out of? Have you ever shot them side by side with a similar gun but compensated? There really isnt anything out there in terms a side by side long term wear comparison. Or failures. Or any real info at all!