Larry, I'm going with the ST for sure. The ST is about as ready as It'll ever be. I wont have to put a landing gear together as I'm going to use the landing gear from the previous cub. I changed the factory wheels for some 3.75 Dubros as you can see in the pic. It still doesn't look like I want it to so I will most likely go even bigger with the wheels as well a going with a tail wheel that's just a hair bigger.