Well my latest update is that i tried a cg change last week, but it almost ended up being a fatal error as i put the ig. pack too close to the recieiver and got interferance.... lucky for me i detected it before i took off.... you get so stuck on one thing you forget about others.... that was scary. anyway the other thing i did this week is sell all my 5645 servos and just bought all 8611A's with metal arms... this should be sweet and i'll let you know how the difference feels. My question is my orig batt pack is a 1800 mah 6V from servo city... is this battery going to cut it with these new servos? as long as i can get 2 flights thats fine with me.... what do you think?