I just got a Seat Concepts Tall foam kit and it is awesome! It made room for my knees and is very comfortable. There customer service is excellent. I called and talked to one of the owners who basically told me I could have any cover option I could dream up for $160 with free shipping for mentioning ADV. I got a carbon top with gripper sides on a tall foam. The install was a breeze and if you don't like how it turns out you can always pull the staples and do it over.