I recently purchased a crosstec helmet. the sun shield would not go down all the way and would catch going up. I had to file the lenz screws off and file down the hinge area where it attaches to helmet. I also put a very small amount of vaseline on the pivot area and now it works. Took two hrs of messing around to acomplish this task. Rediculouse for a $300.+ helmet. Any one else have this problem?