I had a really good and long conversation with Ron Iskenderian a few months ago regarding a damaged cam. The takeaways from the conversation were: - If your used rockers are smooth, reuse them. - If old rockers are not good, buy new. Brand doesn't matter as much as them being manufactured the same as the originals (sintered pads). - Resurfacing rockers correctly takes proper fixturing (this is not trivial) and Ron's guess is that it cannot be done for less than $8-10/rocker. I'm curious as to what Delta's fixture looks like. My experience with Delta was less than stellar. Six out of twelve rockers were not even ground parallel. That's 50%! When you installed the lash pad and rocker, and raised the pivot to set valve lash, this could be seen with the naked eye. In other words, if you had a really thin feeler gauge you'd get different values for valve lash depending on what part of the rocker pad you checked. For all those getting their rockers resurfaced by Delta, I strongly urge you to check to be sure the lash pad and cam surfaces are ground parallel. You can check it visually by doing what is underlined above.