Anyone ever cover the deck with these mats? If I am on the boat 2-3 8hr days straight I am getting beat up (back). I am considering buying a couple to cover the deck in the stern and also in the pilot house where I stand. <br />Looking for comments regarding issues like drainage, marking of deck, and overall fondness/dislike. After all they are a bit pricey and I am a cheap Yankee.<br />TH