jdowens1
Ford Senior Master Technician
What do you know? You're DynoJet guy.
Nah I kid. Actually I think you nailed it.
I'm no pro, but I've overseen well over 1000 pulls, 400 of which were on my car alone, and my experience agrees totally with what you said. I've seen that look of disappointment over and over again as the numbers roll in and the curves are revealed, and neither match what the butt dyno promised.
I think that is partially because the butt dyno multiplies by 2.