I never covered mine with balsa sheeting. I cut notches in the bulkheads and installed five 1/4"x 1/4" balsa stringers. I then recessed the balsa between the stringers and covered with MonoKote. I built 2 Dazzlers and both are done that way. I guess I forgot it was a deviation. I tried the balsa covering bit and the balsa cracked even when wet.