I full agree with you on that, but the original argument was comparative parts cost. My motor HAS an LS6 pump and LS2 chain, the motor had high mileage and pre '01 LS1’s were more prone to oil pump failure. I do understand what you are saying about the parts, too. There are plenty of people that will sell a similar cam and for similar prices and you will do just as good (and in some cases, better). I really don’t know of ANY shops that cut their own cams, they just order them from Comp to their specs (this includes TR and TSP).