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Ok my motor and esc stay cold I have since added a 2nd pickup which goes through half my esc and then motor and it flies out of there but my rudder pick up only goes through half my esc and I can't even see it coming out. My temps are cool so I assume it works. I have upgrade my tubbing to 4mm and exit hole I bought a bigger one. My other pickup shoots out right infront of the first one but I'm still not convinced it is working properly. Anyone else have this problem or know how to fix it???