I set my 4 hole tapered spacer on mine and some of the cloverleaf is right out in the air stream. I have to remove it or the spacer is useless. Was hoping TF had something for me than id just sell the 400-3.

http://www.youtube.com/watch?v=aIxaesJ190U

http://youtu.be/lCZAaN7fFLg