Those of you that know me personally know I am very bowlegged. So much so that I can run my fist between my knees without touching when my feet placed tightly together. Over the years this has caused me many performance issues, the worst of which is offside tail kick out. Basically, at an extreme body angle my right rear leg digs into the water and ejects the ski! The shorter the line the worse it got! Eventually I learned to moderate this by better technique, skiing wider tailed skis, rotating my right rear binding, using deeper than normal fin settings and even trying to wrap my knees together. Most of these moves achieved some limited success but I found some of these methods to be ridiculous, uncomfortable, and/or performance limiting at the least, and medically debilitating at worst. As a result of the induced hip pain I now run my bindings dead center front and back. Being a former snow skier and in search of a remedy, I started messing with canting.
Canting a waterski binding is relatively easy thing to do. Initially, I just used plastic washers stacked up with slightly longer screws under the binding plate. I tried one side, then the other. I tried canting the front boot only, both boots, and back boot only on each side. I even tried canting both boots on opposite sides. For me, the best performance increases came from canting the front boot only on my offside. Both boots canted on my offside worked, forced my rear knee inward but also but caused me hip pain. Presently I am running 1/4 inch cant on my offside front boot. I plan on increasing that by 1/8 inch this spring to see if it helps.
Mess around with canting. If it helps, keep it. If not discard it.