^This.
While not exactly the same, most car magazines use a VBOX setup (more $$ rig than a pbox) to measure cars and publish numbers that way. The PBOX has proved to be accurate to less than 1% of the real time.
Was @ Kings Island Fri Night/Sat/Sun
Originally planned to go when it was on Friday, so we could still go down Friday night for opening day on Saturday. Once it got moved Saturday, I def. wasn't going to drive from Cincy and back again. :fa: