Hey I have used all of them and now run just JRs but they are all good. Best thing to do is check you LHS that you are going to and see what they are selling. Here in Las Vegas my local hobby shop which is Nice Twice hobbys or good old Hobby Town, handles JRs mostly so this is what I use because what I need In flight paks or just ext. wires they carry so I am not held up when putting together a bird. That my 2 cents worth. But the 8103 is very good and 652 and a couple of 783s, Oh and 1 400 JR