Wow that is good form for only playing 4 months. It seems like you are one of those people that just get it. Keep on practicing and you will get much better through time. Dont get fustrated at platues either. Its part of learning. The more types of throws(FH,rollers,thumbers,etc..) and grips(power, 2finger, fan, etc..) you learn now the easier it will be later. Just have out there.