Thanks Mike, that’s what I ended up doing. I guess it’s the only way. And since I was working quite a bit in the sound editor manually updating frames there, then re-mapping to the mouth layer, it was nice knowing both layers were in sync. But that breaks once things are edited outside of that.
You know, I am now thinking since A and X are pretty close to each other, I could potentially just use X for the long L. And of course, manually fix all the X’s done by the lip-syn to A/Silent. Then at least I could keep my sound layer and mouth layer in sync just in case I found some other problem once I got started. I may try that next time.