Photo 1) Measuring the cut of the elevator. Use the ¼”x1 3/8”x30” balsa stick for the elevator and hold the piece against the trailing edge (T.E) of the stabilizer for proper length, don’t assume you will get the proper length by using only the plans as a guide
Photo 2) Keeping the line straight and accurate
Photo 3) Ready for cutting
Photo 4) Cutting the elevator to length with a razor saw
Photo 5) Cut on the outer side of the line, then sand smooth to proper length. The leftover piece is for the rudder
Photo 6) Tape the stabilizer and elevator together for the next step
Photo 7) This step is not mentioned in the manual but to keep the elevator edges flush with the stabilizer edges sand the two ends smooth with sanding bar until perfectly flush
Photo 8) Close-up of rounded front edge and stabilizer/elevator ends flush

Both sides of the stabilizer are sanded smooth but now I gotta go to work now but will be building the fin and rudder tonight.