au contraire mon ami, it does have an effect on a modern syncromesh transmission, quite a disasterous one in fact, i used to fix the suckers for a livingWho did it before? and no, i'm not talking about power-shifting. I am talking about shifting without the clutch, smoothly, without grinding gears, without hurting the tranny. when its done right, it has no effect on the tranny. anyone tried it on the koups yet?
I did, i think its pretty neat. but i don't do it regularly, just once in a blue moon.