So with the hooks and eyes secured over the form, and all the buttons buttoned this happened. Pinning the side seams makes the inside curve of the lapels so severe that the buttons are now too close together.
Note to self: in future, sew on hooks and eyes BEFORE the buttons. Time to cut all the linen tape holding the buttons and move each down a 1/4". I love sewing.
The original holes in the broadcloth will gradually shrink and be covered by the buttons. Next time: collar and collar buttonholes.