As a kid I was fanatical about Pro Comp. But, the reasons why it didn't last would be the same today. When the class began, there were all kinds of combinations of cars and engine combos. As it matured, the blown alky combo began to be the most popular, and eventually the AA/DAs would win more consistently than the BB/FCs, leading to NHRA splitting them into 2 classes. At least that's how I remember it, LOL. Racers will always gravitate to the combination that is the fastest and most consistent. I would just be happy to see the TAFC class of today enjoy a nice mix of blown alky and A/F cars like the TAD category does.