So I recently picked up a CPO Model S and man, it has been a while since i sat in a gen 1 seat, but these things are park bench hard! The seat back isn't awesome, but it is mostly the lower seat cushion (I use that term loosely) and a 200 mile round trip yesterday had my backside crying uncle (this baby does NOT have "back"). Anyway, I've read about the seat "fix" where the service centers can clip a couple of the springs, but ideally the seat foam and or springs may be better addressed by a local auto upholstery shop. Has anyone headed down that path? Thanks!