Took the car to the track for the first time last Friday. First two runs the car shifted fine (no grinding, slipping, etc.). On the third run when I went to shift into second it just would NOT go (tried to pound it in a few times too). It was like it was hitting a brick wall! So I pulled it around and let it sit for a while and drove it home (all seemed ok again). Since then I have not gotten on the car too hard (back-to-back), but it seems to be shifting pretty good (does feel a bit more notchy now though than before). My question is, what can cause it to do that...just all of a sudden decide to NOT go into gear (2nd in my case). Yes, I have done searches, but have'nt found any real answers to this exact problem. Thanks.