Thanks for the update. I had also considered the HD velcro approach, but I was concerned about condensation build up between the foam and the shell due to the gap. My concern was not for the wood but more of mold and mildew forming behind it. I guess that wouldn’t be a terrible issue since you could still remove it and clean every now and then. I’ve used this velcro inside my kayak cockpit for years, but I always complement the adhesive with contact cement which seems to stand up to the abuse. At any rate, I’m getting ready to do my liner and might just go the 3M 77 route as well. Again, thanks for the update, it’s helpful.