hey guys ,,just wondering how you all get on with cog on the n5c as im finding mine a little nose heavy,,it took 25 grams strapped to the tail fin or 100 grams strapped to the rear of the main frame to get it right,,im only running a smalish battery too, optipower 2150 2cell and didnt really want to run anything smaller ,,any sugestions as the best way to get round this