Actually it is still a bit nose heavy. I have the battery as far back as I can get it without modifications. It flies fine that way, it just needs a bit too much down elevator inverted for my liking. I replaced the steel pushrods with CF ones. Not sure if that is lighter or heavier. Also as you can see I have an OS flex pipe on the engine which may add 1 - 2 ozs. in the nose. Whatever you do the 120 FS with the rear servos will be fine.