Not too long ago Schroth released 4 point Quickfits designed for the E9x and E82. I know regular 4 points are looked down upon and may not even pass tech with certain clubs but... 1) Is there an exception for Schroth since they have the anti-submarining (ASM) technology? 2) Does the rule of equal restraints apply to Schroth harnesses too? I know if anything some instructors would prefer the factory belts over a 4 point regardless of manufacturer. If they are required, could I get away with a Pro harness (used with HANS) and non-Pro on driver side (no HANS)? I typically drive solo but every once in a while I'd like to take an instructor with me. I should clarify my dedicated track car has seats/rollbar/6 points but I'd like the option to take out my daily and use my HANS if my track car isn't available.