Yes the cap will do blenders and flat spins, but does need the bigger ailerons. Does fantastic tumbling manouvers.

As with all planes this size without funfly wings, torque rolling is difficult, hovering impossible.

I suggest you get a fifty size 2 stroke, and work to make the plane light. There is plenty of scope for lightening the plane. depends on how much work you are willing to do.

Good fun plane though.