That is the #1 reason why most will not get that Option. I was advised against it, as well, being told the only way to stop it is to TAPE it down during travel. No thanks.
Iíve also heard some will place a small clothespin-type clip on the louvre. Again, no thanks.
Those are the only two methods Iíve heard.
Steve & Janice
2019 Dutch Star 4369
"We're late to the party!"