Only happend one time for me. That was when i had one set just for the front that was 4 years ago. I now have 2 sets front and rear 4 straps (recommended) for that trailer. You have to and should ratchet as tight as u can ro keep them tight. My cabin has a stretch of road for 10 miles thats rough as Hemorrhoids and they never come off. Ive drivin 500 miles to RRB a few times and no issues. My TH has ETrac and i use the same straps in there and went to Colorado 1,200 mile trip and never came loose.. Sure u can use the basket ones, (expensive) but if you just use 4 of the single straps and make sure there good and tight your fine. 4 years this way and roughly over 70k miles with them. I think im good lol.