I have a quick question for you guys. I fly an Avistar with an OS 46AX and feel like I am very good with it. I have increased the throw to max and am very comfortable. I can do low passes at full throttle inverted and fly inverted all day long. I can do inverted loops, knife edge (as good as it can) and almost everything else I can think of doing with this plane. I am looking for a second plane in a 60 size, but I am not sure the 4* is a worth while move for me since I am already on a semi-symmetical wing. I am worried I will get bored on the tiger 60 too quickly. I thought about a U-Can-Do 60 with a OS .91 or Saito 100. I am looking for suggestions. Thanks in advance guys.