I have my slab glued up and had to cut the rough shape with a jigsaw. I have a template for my router to true up the bottom half of the form, but I am not sure what to do about the upper half. Unfortunately, given that I couldn’t use a bandsaw, the cut isn’t perfectly perpendicular, which isn’t a problem for the bottom half once I route it with the flush trim bit.
What is normally done to the upper half to get it squared, trued, and flush?