I modified a Senior from a kit by adding barn door ailerons, removing all but 1/2" of the dihedrel, tail dragger, Saito .82. Plane flys great and will do inverted, nice rolls, hammerheads, but will not spin worth a darn. A large plane and low level aerobatics gets a lot of attention, as in the ground will reach up and get him soon! Not with the Senior.
Forgot to mention that I added bolt on wings. And here is a picture of a real clock watcher, knows when its time to stop!