Sounds like it is time for a new plane.
I agree with you on that one, but I'm currently limited on funds. I was given Parkzone corsair which the owner became frustrated with and crashed, but easily fixable. I'll be working on that next. I do have a 3d plane on my wish list.
The wasp is actually an interesting tainer. It's capable of being built as a stable trainer or more for actrobatics. I first built it with the dihedral as a stable trainer, but I can't fly to well without ailerons. So I flattened the wings and added more servos.
This plane can handle a lot more than most will expect. I'm even able to hover, but only for a short period. Once I switch to a the 3S lipo, it should become a more interesting plane. I've done a google search on this plane and read that people have gotten them to 50+mph.