I just got back from P-kill and i had a good time but i had some problems with my rear hayes mechanical disc brake. I came up short a couple times on a double and i hit the rear wheel kinda hard and then my brake lever wouldnt go back as far. Normally the lever would pull about and inche and a quarter until the wheel locked up, but after i landed the double it would only move about a quarter of an inche. After a while it just went back to normal and felt fine but i couldnt figure out why it did this. Anybody have any ideas??