Well I wouldn't doubt that...a lot of parts get a bad rap because people install them incorrectly. I have heard that the comp stock replacements are reliable, it's just the R's that I've heard of having problems, but if guys are running them with too much preload, I could see how they would fail prematurely.

Good to hear that they're working out for you

 

I'm running those lifters now for about 2 years and no problem, I tried em with the pro magnum roller tip rocker with a 1.75 ratio and had valvetrain stability problems, or so I was told, i put the stock rocker arms back on and haven't had a problem since.the cam i'm running is.585 lift and with the extra amount on the rocker ratio was about .602 actual lift. I use the patriot gold dual springs and are suppose to be good for.650 I also had them preloaded so I know it was done right,but i had a problem,until i took the rocker arms off and went back to stock 1.7 stock ratio rockers

 

Stock rockers with Comps upgraded trunions are about as good as it gets. Plus the upgrade is only $130! Then you have to press them in or have someone do it for you.

 

I had the comps and they were super noisy and that was on a 589 lift cam.
now i'm running the ls7s on a 620 lift and there dead quiet.