[1crosscut]

I've cut strips of cork gasket material to lay in the groove to take up some of the space making them fit tighter. I use a little bit of silicone gasket maker to stick the cork into the bottom of the groove and a bit of the same to stick the felt to the cork. This makes for a better compression fit when assembled. I do not use the gasket maker on both sides of the felt so it still has the ability to move/slide as needed while going down the road.