I've been researching options to make my car safer on the track, but it's not a dedicated track car, I daily drive this thing, so I'm trying not to compromise streetability all that much. I'm retrofitting the Lotus stock harness bar (thanks RoadDad for the parts list!), but now comes the question of seats and harnesses. From what I understand of physics, when a harness stops me in a collision my torso stops way fast, so my head will want to come off. Ideally, I'd like to prevent that , but it appears that the Scroth 4-pt ASM is incompatible with HANS devices, 3-pt + helmet is probably safer, but I need more support since I'm flopping around in the seat in turns. So, is anyone aware of any ASM harness compatible HANS devices? I'll run 5 or 6pt harnesses if I have to, but I imagine I'll get annoyed sitting on buckle pieces and I don't like the notion of butchering my seats.