Holding the clutch down at lights is find while in gear is fine and you rarely see the throwout bearing go out before the clutch under normal conditions. I wouldn't hold it down long while your moving however. The basic principle is to let the clutch engage and disengage with the shortest amount of "pedal" movement time as possible while keeping the shifts smooth. Sometime this cant be helped like in stop and go freeway traffic, so you just have to practice a bit more.
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[09][MB][6-Spd MT][Touring][Stillen Gen III][K&N][Borla CBE][Evo-R]
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