ok heres a question for you guys. I am gogin 55 in 5th gear and want to pass say 2 cars in front of me?? I also want to hit 3rd to make it a quick pass. You dont just downshift into 4th or even 3rd with out rev matching that would be plainhard on you and your tranny. Its slowling way down it may even lockthe tires for a second or 2. What i do is hit the lcutch blip the gas pu tin lower gear and then gas on lcutch out like you normally would none of this double xluthing **** that saves no time and everyone is righ ton saying that was for old trucks that didnt have synchros. and I have foudn by rev matching to the right RPMS the downshift feels as smooth as an automatic. Also the mechanic that installed my clutch said rev mathing will do no harm at all.