i use double clutching to get it into first gear and second gear easier. my shifter wont go into first at all unless im stoped or at 1 mph. so what i do (say coming to a light that just turned green but ive already slowed way down and traffic is behind me) i put it in neutral, foot off the clutch, rev, foot on clutch and shifter into first, foot off clutch.
double clutching has its place. if you're racing, never double clutch an upshift. i almost always double clutch my downshifts, matching revs of course. i usually don't double clutch when i'm heel-toeing, but sometimes i will do both (double clutch and heel-toe).
when done properly, double clutching a downshift when you're rev matching will barely slow your downshift time.
no, it's not necessary. at all. i know this. it also won't hurt anything.
thanks, so now i know the right term and i also know its useless, some people said that double clutching is when you simply press the clutch in while your foot is on the gas adn its in gear, but they are wrong right? yes they are ok