I used my Heli-Max "Blade Balance" today for first time - very easy and accurate. I have Honey Bee King2 and am struggling to hover for more than two seconds. I damaged my original wooden blades so mounted a set of plastic Xtreme blades - terrible vibration. So I balanced my Xtreme blades and now very smooth. I used vinyl electrical tape.
http://www.helidirect.com/product_re...oducts_id=2213
Luck,
Vince