I do know one thing!! If the companys make us go back to 72 mhz IM DONE with this hobby.. Or they will at least have give us all new radios. Cuze I am not going to buy anymore systems. I guess we /I will go back to C/L.. But that wolnt work for me. I guess I will just stick to building/rebuilding rc engines. Heck may get into raceing go carts.. Thene it will be a catch me if you can issue lol.. I also have a t-maxx thats kuel at 20ft they fly..