They are a great setup. As usual with T&D stuff, the quality is exemplary.
While I do see the point of those that think they are overkill in some cases, you can never go wrong over spending on the hardest working part in any high performance engine-mild or wild. And that is the rocker gear. I have lived through the headaches of the stock hemi rocker gear that was killing the pushrods, galling the tips, poor geometry, ratio inconsistencies and so on. When you look at it between the long pushrods at crazy angles, it's a small wonder the stuff held together as good as it did.
If you really want to talk overkill, everytime I hear about the guys barely making 650HP with a Bryant crank, well, that's more of a case of overkill.
MB