Well, considering their size, what I would do is just put some fillets on the Phoenix and the Fat Boy (if you don't already have them) and add a little nose wieght on both. I am not sure that launching the Alpha on a G is very smart. If you want to you can but I do not believe you could do anything to help it fly better. In fact, it probably would be very dumb and VERY dangerous. I am just telling you what I would do. You can do what you want.