Well you know me- I'll take any opportunity I can have to interact with the nasty mat so I just went out to the garage, pulled it up and jumped up and down in the ski locker. I couldn't detect a problem but the floor is solid enough I'm not sure I could tell for sure. What do you think is the maximum amount of water that area can hold? Next thing you know my boatmate trailer will fail and they'll say it's because of the extra weight in the hull of the boat which according to SC isn't a problem.