Explane please
I have the f s it 4S and it's worked fine for 2 years for me I'm going on my third season with absolutely no problems and you do not have to rebind it for every model and I haven't tried it yet but I believe the four channel can be linear also free Power tilt and trimI realize that this is old...
But the fs-it4s is completely programmable...3rd channel can be assigned to TR5 thats linear... Very nice radio..
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