Well I'm tryin to decide if I really want to wait 4 months on qsd or just buy the bisi kit. If I were to go the bisi route, would my hasport ef b mounts work correctly or no? I know it sounds like a silly question but I'm unsure weather or not if it works the same as qsd. Any insite would be apprecieated ! Also as far as the driver side frame rail on an ef, is there massive beating? Or is there an easier not so violent solution to fittament? Tia