Rather than using tape to seal the gaps for the flaperon tube or the leading edge of the stabilizer I had seen a method in the past on some vintage airplanes that may work.
The seal looks like two opposing paint brushes, and with the flexibility of bristles the tube will move up and down with ease.

Anyone out there know where to find such a thing?
45 hours on my newly built SuperSport and loving the Desser 22" tundra tires. Jeff