Goodcat, I would tend to think that your turn issues have something to do with you boot fixes, except that it sounds like you skied them for 2 days after the mods without issues. Was there any significant change in the snow conditions?
I had a similar problem near the end of last season. I had been skiing my Hells Belles for about a month, and just loving them. Conditions started getting pretty soft/slushy by April. My last day of spring skiing I could not turn to the right for the life of me! Turns to the left were fine, but turns to the right weren't happening in the soft, snow-cone type conditions. I hypothesized that because of all the rocker, my tips weren't engaging from my left leg as it was becoming the new downhill leg. This leg is slightly shorter, too, and doesn't have quite as much leverage as my right leg. It was kind of comical making my way down the mountain with just left turns!
Fast forward to this season, I was expecting to have turning issues like I did the end of last season (thought it was me, my technique, the skis were no good, I suck, etc. etc). But with the snow conditions we've had so far, I'm able to initiate the right turns without a problem. I think if I encounter the same issue this spring I'll try some skis with less rocker.