I call it sods law, i bought a novak gtb and 6.5r combo about 6 months ago and i had to send the motor back due to a manufactering fault, got it back 3 weeks later and have no problems with it since, i think it was one of the simpleist ones i have used
and btw i run mine with a fan and its perfect
3 of our club members run the novak combo and they have neither had any problems with them.
Carl