I JUST had this problem with my LX this year and got it fixed. Bow shoots like brand new now. There is a bearing in the cam which had gone bad, which allowed the cam to just slightly "wobble" (for lack of a better term). You could not tell at all when it was under pressure. So the cam leans one direction when under pressure (because of the bad bearing), pushing the cable slightly in that direction, so when you shoot it, the cable pops out. Happened every time I shot. I took it to Shelby Forest Archery (Millington, TN), and he fixed it while I waited. (It was the first time I had ever been there, and I was hugely impressed by his knowledge and expertise, and he had every part needed on hand). He pressed in a new bearing, put on a new cable, replaced the rollers (they also had a bad bearing)and re-tuned everything for $146. And like I said, it shoots like a brand new bow now.
I'm not trying to plug the guy's shop, as I've only been there once, but I plan to go back for everything. He diagnosed the problem in 5 minutes and had it completely fixed in less than an hour -- and was a hell of a nice guy. He's apparently had that shop for 20 years and deals exclusively in Mathews. If I were you, I would consider shipping it to him unless you have a bow guy you really like. And if you do, tell them to check the bearing in the cam and ensure that the axle to axle is correct.
