Thanks TideFlyer and MinnFlyer. So far, everyone seems to like the Avistar. The nice part is that the Futaba 4v-f radio could (I think) be also used with my Super star EP (w/o ailerons). That way I can hook up with the instructor on either plane. My 3 channel Futaba has no buddy jacks. I guess that if I bought the Tower trainer, I would be stuck with two planes with full dihedral. The avistar would be a step up in aerobatics after I get better. I see why you all like the Avistar. Makes sense. Take care. Mike