Glue the back bracesI may glue the back braces in the go-bar deck, but I'm just as likely to use cam clamps. This way I can do the back braces while the soundboard is in the go-bar deck. In either case, the braces are pre-curved and they are glued while the back is in the curved workboard.
The workboard isn't floating in space as it appears here. It is resting on another guitar-shaped workboard that has its neck clamped to the top of the workbench. You will know why it is shaped like a guitar when you see how I glue on the back.