Do you cover or not while storing?

Cover. We not only store our new TT, and previously our HTT, under cover 24/7, we use the Adco cover recommended for our area after winterizing. Yes, it's probably overkill, but it's a big investment and we want it to last as long as possible and look new as long as possible. Blue tarps are a mistake for 2 reasons....1 - they don't breathe and you end up with the mold/mildew issue. 2 - they're abrasive and can/do leave blue scuffs on the exterior finish. If you watch for CW to have their annual fall cover sale, the prices are not bad and usually include tire covers at N/C. If you need to get into your camper during the time it's covered, no problem....there are zippers stragecially placed to let you get in and out without removing the cover. Our Adco, which we bought in the fall of '06 went along with our ROO to its new family and we had only a couple of minor patches on it. It should last a good many more years. BTW, read the instructions before you start trying to put it on your camper....makes life a lot more pleasant. It's not a hard job, just bulky and awkward the first time to two.