I've found over the years that if you cover too early in the season, or uncover too late, then the solar warm that is trapped under the cover (even though it "breathable") sometimes allows the cover to bond into the Eternabond or Dicor. Especially on corner and other places where the cover pulls a little tight.
We're about done for the season with too many 55F days here in upstate NY, so while I winterized a month ago, I'm covering today. Likely uncover in mid to late March. (hopefully!)
2014 RAM 2500 Laramie 4x4 Quad Cab w/Cummins Turbo Diesel, 2009 Rockwood 2607, and 3 'yaks!
300W of Suntech Solar, a Rogue MPT-3024 Controller, and a Xantrex PW2000 Inverter