I have run into just the opposite. I am running a Saito 50 up front and was horribly nose heavy. I cut a hatch as far back in the bottom of the fuselage as i could and put my battery pack back there. I wanted it to be a little tail heavy though. With all that said the airplane fly's great. With the flaps and everything else it is a blast.

Make sure you reinforce the firewall and the landng gear though with some extra glue. I personally don't have any bad experiences with the firewall but did need to put more glue in the landing gear department if you know what i mean....

May the wind always be light and variable and all your landings be good ones....

Dan