RE: E-Flite Blade CX2 Rotor Blade Replacement
I found balancing the blades before installing them makes a big difference. With balanced blades my CX2 hovers in place like a dream.
Also I've found that yes, heat effects control. During a long flight my trim tabs can move from one side of neutral to the other. I try to cool down at the halfway point of a battery, around min. 5-6.