After having issues with other rockers, both my friends 470" stroker with RPM heads, and my 505" stroker with stealth heads are running Harlan Sharpe rockers with Smith brothers pushrods, and have not had any problems.
Not sure why the price of good rocker arms has jumped so much in the last few years? The S70016K 1.6:1 ratio set is now $830. About 5-6 years ago they were only $550-$600 a set.
Not sure how much the T&D rockers cost now. I have their max wedge victor rockers and they are good parts too.