The stab root ribs will not be glued on until later. When the fuse is nearly complete, the stabs can be final fitted, which may require very slight adjustments to the root surfaces of the stabs.

Trimming the outboard tips of the stabs is purely a builder's option. To start, I measure along the LE and TE of the stabs to make sure we are starting with stabs that are identical length. I pick a measurement from the root and make a mark at both the LE and TE near the tip. The elevators can be taped back in place using the shucks for alignment, then draw a cut line along the marks that extends over the elevators. Double check the measurment from the root to the cut line and then cut.

After cutting, I measure one more time and block sand if necessary to get the measurements as equal as possible. The tips can then be capped.