M3 is already making a 4mm 7075 chassis which will weigh the same as the stock chassis apparently but no one had made a 3mm yet@olds97_lss @arrmaracing I looked it up. They make a short wheelbase that is the Senton/Typhon/Outcast and a long wheelbase that is the Talion/Kraton. So I should have all the chassis covered for prints for a 3-3.5mm thick lightened racer series and a 4-5mm thick basher series.