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hi all i have the hpr ct04 67 inch cat build and on second test run whith only 22 volts i notice little smoke when lift hatch but it was from rear i checked it out and i used the grim racerer grease and lube the flex and innner tube real well prior to run but it still used all grease and the wierd thing is i am running my heli batts 6s 2600 mah and if those batts got the brass tubes for flex hot should i go next size bigger so maybe the grease will stay in there to lube flex and not get hot tks all