Bipes are actually getting more popular, even in indoor competitions. Look at QQ's Yak bipe as well as the other bipes sold by foamy makers out there. Myself, Im an Ultimate fan. I fly the Eflite profile and working on the FX now. Not to mention my Hangar 9...probably will try some of the plans i have also. I also have a tensor kit, will try that after the FX for indoor. Flew a friends in Vegas, flew well. Different for sure.

They are not any harder than any other foamy, just different until the pilot gets used to it. I flew my brand new E flite Yak, then switched to my ultimate. the ultimate is noticably more sensitive than my Yak right now. I need more throws on elevator. but the ailerons are soft, but still quick if that makes sense.