A year ago I discovered that the fin former would not fit in the fuse with the pipe mount and stab mount formers in place so I had to cut it in half to get it in.
Scab patch tabs fabricated to align the bottom and top half of the former
Tabs glued to top half on each side
Dry fit of bottom half of former
Top part of former aligned in position by clamping to the vertical fin aluminum spar
Top half tack glued in place with medium CA
Bottom half clamped to alignment tabs and tack glued in with medium CA
Edges sanded smooth at joints. Ready for epoxy to fuse.
Vertical fin in place aligned with the former. The vertical alignment will be set with a laser level for final assembly. Finally something simple that worked!