I did this a few days ago. Because of the square lip on the raised "grip"part of both of the boards it is pretty easy to trim and looks pretty good. This is easy and cheap and makes these boards ride 1000 times better. At first I was just putting an inch strip down the center of the board, that works okay if you still want to see the design in the top of the deck. This feels much better though, I think they stay like this now.
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