Ive used the previous or older design comp cams steel rockers
on lots of engines with good results, that the newer design has recently replaced
but Ive also used these two rockers
ERSON extreme duty
which Ive used for dozens of engines over many years with ZERO FAILURES so far, just be aware that the extreme duty rockers are ,a more robust design that the standard ERSON rockers which I don,t recommend
and the CROWER stainless ROCKERS
theres ARE big differences in the quality of the metal and hardness, look closely at the PROCOMP Chinese rockers above, notice the tip of the rockers axle, its obviously been flared,like a rivet indicating a fairly soft metal, rather than forced into place with an interference fit like the comp cams rockers they try to duplicate
BTW if your thinking about getting roller tip rockers , DON,T!!
Because, easily 90% PLUS of the friction in the valve train is NOT on the contact between rocker arm tip and the valve stem, so swapping to a roller tip on a rocker provides negligible benefits in friction reduction.
you can buy decent quality full roller rockers, for well under $250-$300
and roller tip rockers commonly cost 1/2 or more of that making the full rollers a much better option