The “Right Stuff” foam added at the intersection of the horizontal stabilizer and fuselage yesterday, was sanded to radiused fillets, using 40 grit sandpaper wrapped around a 1-1/8” wood dowel.
Two more layers of fiberglass was added to both sides, with a couple more bias gussets added at the intersections and at the points that I expect to use fasteners for attachment to the fuselage.