I now have a seat sink but thats it. Hope if there is a heat problem on the 4 and 1 e-flite works on it. After hearing what you have done it appears like the 4 in 1 has a design problem not a heat problem. If you can't correct the problem by venting the heat by using the blades the only thing left is to build a small refrigeration unit to carry on top the heli. FORGETABOUTIT! It must be a 4 and 1 electronic design problem. BE GENTLE. Ron