I bought a 1 man Frabill flip over shanty last year. I love it - great for pulling gear, easy to set up, plenty of room to fish out of, fits in the trunk of my Focus - but there is one issue I havent gotten over yet and I'm looking for some help for the upcoming season. When the winds blow, as often happens when in the middle of a lake, there is a contant flow of cold air the flows into the shanty. Because of the contruction, the wind always has to be at your back. This allows the air to flow in around the sled filling the shanty like a balloon. I've packed in the sides with snow and it works well, but I was wondering if anyonoe tried to modify their shanty with a draft skirt of some sort to eliminate this issue. Please post pictures if possible. Thanks!