Anyone use this trans company

a few years back I was at the Mopar Nats in Indy. I was talking to John while he was eating a snack. Probably 3 to 4 guys came up to him asking some questions...these are people that were running his trans. John told me that there were probably more than 50 of the racers there that day running his transmissions. These were guys running wheels up mostly big B body cars running in the 9's and 10's. That has to tell you something....