I had a set of those Comp roller tips, and yes the fulcrums turned blue from heat. I am now using the Scorpion rockers, made in USA and reasonably priced. Nice quality. One thing Techinspector didnt tell you is the much better accuracy between pieces a roller rocker offers. A stamped steel rocker that is a 1.5 ratio can very greatly to be much less or much more than 1.50 We used to be retricted to stamped rockers in the class we ran, and we would go through buckets of rockers to find 16 with the highest ratios.
(Ok so T/I added that after I read it) Thanks