Super chub is going to need a patch! I just came back from a great hour long practice session and found this. It looks like it just wore through inside out on the angle brace on the horz stab. the right side is also showing signs of the same. Any 180 Super Cubers have anything similar?
I would use super glue or the super thin CA model glue to re-attach the paint to the fabric then scuff the paint and glue a tape over the top. If the paint's not sticking to the fabric from poor adhesion between the dope and fabric I would remove the paint down to the fabric and glue a tape down with a fabric to fabric bond and then repaint.
the new heavy 101 ceconite/polyfiber fabric is much more difficult to penetrate the weave and get a good bond with. Try reducing your nitrate or poly brush more to get it deeper into the weave.