I feel your pain :( When I first began LA'n, I did a lot of rip'n. I have a Gammill & you definately have to wrap your thread 1 3/4 times around. Once your tension is properly adjusted, it is rare that it messes up... Do you use the machine's bobbin winder or a stand alone bobbin winder. My initial tension problem was the bobbin winder wasn't working properly. I use a stand alone and all I had to do was open up the prongs that the bobbin sits on. Then I went about following the manual to adjust top & bobbin tension, using practice muslin til I got it right. Even now, I get an occassional tension issue. One time it turned out I had a 'bad' cone of thread. So many things can affect tension.
Sorry you have to rip. Once you get it re-quilted, you'll be glad you did :)