I know that a dyno is a very valuable tool. Great info can be gathered. I know you quote/post richard a lot. I'm strange, I like boots on the ground. AKA - ET slips. I still say that at the end of the day, the response is different from Dyno vs Track. Not saying he is wrong with his results, of course. Andy Wood did a great video on "the dyno is not the track". He found out after having mixed boss perfectly tuned on the dyno, it needed retuned at the track.