I've always wondered the answer to this question. Typically I'll veneer both sides of a piece at the same time, put them in a vacuum bag, and voila'.
But the present piece I'm working on has one very large surface which would be a bear to get glued and aligned quickly enough on both sides before putting in the vacuum bag.
Do I risk warping the piece too much if I do one side, put it in the vacuum bag for 4-6 hours, then veneer the other side a day or two later and do the same thing?
I was thinking that any induced bow will be reversed by the moisture of the other side plus it's time in the vacuum bag, but is that true?
How do you guys do this on large pieces (the smaller pieces I'll just do both sides at once. That's not a huge deal.)