OP, do you use a HANS?

A head restraint type seat is really the only seat that should be allowed if you are wearing a race type harness.

This is mine, which I had custom sized, my son has a FG head restraint Racetech.

https://board.moparts.org/ubbthread...nger-track-day-protour-practice-car.html

Pic #80


Note, Dale #3's death occurred with contact with a concrete wall at a closing speed of 42+ mph, resultant forces estimated to be between 65-49 g's during an 80 ms impulse, meaning a 200lb driver will impart maybe 9800lbs of force into the seat/restraint/mounting system.

Last edited by jcc; 01/26/20 11:13 PM.
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.