Electric Camel is flying great with a AXI 4120/16. Swings a 13/8 Zinger that has 1 pack of lipolys pushing it with 14.8 volts of juice. The lipolys are 8000mah so I can fly one long 13 to 15 min flight or 3, 6 min flights. I go with the 3 flights as the fun part is taking off and landing. Weight in the little wood box helped alot. I also added some carbide chunks I had from my shop. Carbide is heavy like lead, and I happen to have some on hand. I would say besides the box they supplied with the weight in it I added another 12 oz. Flew it with about 6 oz. added but bounced on landing. Now it lands fine. Nice sunrise last Sunday here in Huntington Beach CA. But ya got to be there by 6:am or you don't get to see it.