I bought a double vision from chief aircraft, one of the newer versions, flew it four times in the hot summer sun and the covering is turning lose. I coated the seams with clear finger nail polish and flew four more times the next flying session and covering is turning lose at the seams. It is next to impossible to re-iron them down and if you do they are not going to stay. This has to be the worst covering on any plane at any price that I have ever had. I was so disgusted that I spent 125.00 on covering and a trim iron to recover this plane. For this extra money, not to mention the time it will take to re cover a built plane, I could have bought a Wild Hare Sukhoi or Extra. Live and learn. No wonder Chip dissapeared.