My experience is with the Dynaflite Super Decathlon. I believe these kits are worth building and putting the Quadra on them is a good fit. The SD tends toward being tail heavy. Don't know about the Super Cub. There are some structural weaknesses that needed to be addressed, but they weren't major and easily dealt with. Most of this has to do with the principal material used for the fuselage (lite-ply). some strategic doubling or replacement with A/C ply is recommended.

Have fun with it!

Bedford