I apologize if this has already been beat to death, but very soon I will be at the step where the rear spar is installed on the wings. The beef-up kit that addresses the cracked aft spar at the inboard aileron hinge (service bulletin 16-03-28) came with my wing kit so I'm just now getting started looking at the service bulletin instructions and comparing them to the wing kit instructions. The service bulletin instructions are written as though the wing has been completed and starts with inspecting for cracks, and if found a procedure for how to peel back the bits and pieces of the structure to make the repair. It isn't obvious to me yet where one of the steps in the service bulletin is supposed to dovetail into the wing kit instructions. In other words, what step of the service bulletin is the starting point for installing the beef-up kit into a slow-build wing, and where that fits into the wing kit instructions.