Matt,
First and foremost you are doing some research and keeping a open mind. There are people in the sport using internal clutch slippage initially then locking up the clutch progressively as they go down the track. I have friends and know others and even attend the events. They are using other motorsports technology and using it successfully and they keep it secret. Like anything it will eventually filter down to the other classes. Anyway, it will eat up the clutches and there are modifications to slow the process. BTW we are getting around 70 clutch runs on asphalt after starting with only 2-5 runs. The more you know the longer they last. Our sand set-up is doing good, but I don't have the exact amount but's around 50 hill runs with a fairly new used asphalt clutch. I can look up the asphalt runs if needed.
Bryan