hittin the brake and gas dont work for shit ... i ran my stock 94 accord ex 4 dr at the track and it ran a 17.04 when i just floored it in d4 and when i tried that brake gas shit it ran a 17.1 something ... so **** that.
And yes your car shifts slower and it ****s up the tranny when you manually shift ... i dont do that shit at all cause my friend did all sorts of shit like that in his old 95 civic lx and he had to get a new tranny twice ... then again this is the same guy who took the airbox out and put a sock over the pipe so it would still have some filtration lol.