i have a big stick 60 size 67" w.s. and this is not giant scale but pretty big. it is also a gasser powered by a 20 cc vvrc engine. that's valley view r/c. i fly three other nitro models also with my 650 tatic all using the 624 or single antenna rx. i admit i should have the dual antenna one in my gasser and will get one soon. but no issues so far..........love it.