Try the Webra Speed 35, swinging a 10x4 APC this combo won't quite give you unlimited vertical, but you don't want to fly it out of site anyway.

I have been flying this combo for 2 years now and still love it. I especially like the inverted flat spins, slow, tight and flat when you feed in opposite aileron.

GREAT little plane...I haul it and my Pizazz to the field in the back of a mini van with no assembly required.