Good suggestions. I use a small length of heat shrink tubing, (comes in colors), about 2" long, to exit the antenna out the side of the fuselage. To clean this little exit hole up, I use a brass eyelet that does not go thru the fuse. The heat shrink takes the strain off the antenna. Run back the side up to fin. On sport models, just put a T-pin to top of fin, tie antenna to a rubber band, slip over pin. Measure all so there is a little tension on the antenna, but not tight.
Good idea to also tie a half knot on the inside close to where the antenna exits from fuse on the inside.
Vince
Hobe Sound, FL