Wing tube sleeve done and ready to epoxy in place and trim. I had a section of the CF sleeve from my old 35% Extra. Made a straight cut lengthwise using the diamond cutoff wheel in the Dremel. Wrapped it around the correct diameter (smaller) wing tube, marked the excess overlap and cut that off. Dressed the edges to make true and wrapped that around the smaller wing tube, secured with tape and used gap-filling CA with kicker to do sections between tape wraps. Eventually got the entire length glued together and sanded smooth.
Fits perfectly and of course will be epoxied in the plane. It is captured in four places by the light ply structure, so it should be fine down the road. After installing I may wrap a bit of glass around it on both ends between the motorbox and sides.
In the pic, the old 35% sleeve is on the left, then the section removed, next is the new smaller sleeve CA'd together and finally the proper wing tube for this plane. Oh, the diamond cutoff wheel.....couldn't live without this thing!!!