So I just had my Manual Trans serviced for a new 1st gear Synchro and new fluid per the TSB, and now my shifter doesn't spring back to the center when pulled out of 1st or 2nd. I can move it freely and keep it in N between 1 and 2 or 3 and 4. It does, however, spring back if I try to put it in N between 5 and 6. This is also making it very difficult to find 3rd gear after leaving 2nd. Any guesses?