ORIGINAL: Pilotsmoe
Just use the thin ca, the tape is not that critical, as long as you got enough epoxy on the wing joiner.
Tell that to all the trainees that trusted wings without fiberglass taped center sections. (the ARF kit didn't SAY to put it on... so they didn't) All those pretty airplanes that decided to play LAWN DART when the wings folderd in a simple 1.5 g turn. (appx 10 deg bank angle... near 0 up elevator... and the planes had never been looped.)
Sorry... but I see a trainer without the reinforcement... I won't help fly it because I KNOW it will break.