I've also been looking harder and harder at one of Z50s 120 size. Looks like a pretty cool sport/pattern plane with an OS120 in it. It would really be cool if you could do retracts. I've been looking at them on Nitro RC. pretty good buys up there if you carful and don't expect composit quality. Many seem to good weekend sport planes. I'av also got a spare ys110 they that should pull this thing around in pattern work.