You may find you need more than that, I had to add 670 grams (1.48 lbs) of lead shot to the nose in mine; however, that being said I did glass & paint the horizontal stab and the wings which could have been a contributing factor to making it a bit tail heavy .

http://www.rcuniverse.com/forum/rc-j...thread-11.html


Attached is a layout for the balance fixture I made for mine, they slip in between the fuselage and the booms.