I have a GP Big Stik 60 with OS 91 four stroke. I've only flown it a few times and it's much more maneuverable than my trainer. The first flight, I thought it was "too much" on high rates so I programmed low rates and exponential for the next flight. It was much better (for me) with the milder setup. My brother (who has a half dozen planes of various flavors) flew it with everything maxed and liked it set up tht way so there's plenty of room for me to learn with this plane.

I think any '60 class' two stroke would be fine for this plane. I had the four stroke in the drawer so I used it.


Modeltech has the Joss Stick
Hangar 9 has the Ultra Stick 40 & 60 in addition to the 120 you listed
GP has the Big Stik 40 in addition to the others
Thunder Tiger has a Stick
Goldberg has a Stick

I'm sure there are more but this at least gives you several choices. Some are small, some big, something for everyone.