The Ultra Stick was a great second plane for me. I was actually thinking of upgrading the engine to an OS 55ax for more hover power. A Saito 82 would also be great! You can also push the CG further aft as you get better and make it more nimble and to fly better inverted. The quad flaps are fun and you can tame some of the KE problems by learning how to use your computer radio and mixes. The only thing better would be a Jerry's Big Boy. The wing does not have a flat airfoil. It goes where you point it most of the time. It flies almost as well inverted as upright with the CG set back.