i get a little bit of clutch chatter if i let up on the clutch a little too quickly in 1st or 2nd from a dead stop. and that usually only happens when the truck is cold. i don't give it throttle when starting off unless i want a quick start, then i'll give it some...

 

Second unless I am starting on a steep grade or have a load on.-Steve

 

seems like every stop light in this state is a drag race. With that said, I always have started in 2nd gear with just a little throttle, works smooth as you could ever ask for empty or with a little 3,000 lbs. trailer behind it (really hard to tell the trailer is there at all!)
My question is when you see these guys at truck pulls with stock, and near stock trucks are they useing first OR second at all or just starting off and doing there whole run in 3rd???