I've noticed a few times now that when I'm pushing the car a bit (not even on the track), soemtimes it is difficult to shift out of 2nd and 4th gear. This is different from notchy shifting into second when the trans is cold. The effort requires to take the shifter out of 4th is similar to the effort requires to put the car into reverse. The engagement point of the cluth is also quite high (80%?). Has anyone run into this problem? BTW, I have the Ford Racing Short Shifter installed? Do I have bubbles into the line?