Alright ive been having problems for a while now. When my car is cold it will grind wrd gear unless i hesitate a little bit before going in. Once its warm the problem goes away. Heres the other part though. Sometimes when im racing and im in high RPMs in 2nd gear and try to go to 3rd it grinds and wont go in. Right now i got my rev limiter set at 6000 and i usually shift around 5,800. Does it sound like a bad synchro or could it be the restrictor ring in the line that goes from the master cylinder to the slave cylinder?