What setting's are you useing on your MMM?

I am useing a mmm esc and a castle 2200 motor,with a 46 tooth spur and have used a
12, 14. 15, pinion.The 12 ran a bit slow,15 seems to run a bit hot at times,the highest
was about 160, so i tryed a 14 seems to be a good all around pinion,temps run about
120 to 145.And have had the problem that a lot o f people have had here,the dreaded
FAN! Have had 2 fans go bad so i pull it out and ran it without it for a while.Temps seem
to go up and down just trying to find the right setup.