I accidentally used a waxed shellac and when I realized my mistake, I lightly sanded it and I added 2 coats of dewaxed shellac over it, then sprayed the lacquer over it,
I just hope the lacquer doesn't peel off because it would be a lot of wasted time, effort and money. So far, on the headstocks, its seems pretty solid but I'm not sure about the bodies with more lacquer layers. Maybe the adherence isn't great because its still fresh?
It seems like the dewaxed shellac coats should be sufficient for proper adhesion, but I'm not so sure anymore.