I used a Dremel tool to remove the fiberglass leading edge material to fit around the hinge /bellcrank attach brackets on the ailerons and flaps. I started out using a cutting disk and ended up using a cutting tool on a long flexible shaft as shown in the photo. It was easier to control and faster than the disk. I used a shop vac while I was cutting. Noisy but it controlled the fiberglass dust nicely.
