From what I read on the neon boards, the shorter arm will cause a 30% reduction in throw. And I already have a b&m shifter, which may lead to a significant reduction (more then I want) in throw. We will see. Btw, here is something neat I found while digging around. It seems someone use to make a custom shortened shifter arm.McFab was the name but apparently it hasn't been made for quite some time.