Best Cooling Fan for Mamba Max?

[sikeston34m]

What's the best fan to get to mount to the Mamba Max heatsink?

Now that Castle has updated the firmware for the MM, which promises better startups, I plan on testing the MM again.

It's time to see if it will run 12 pole outrunners. I know the little booger tends to run hot though.

I remember seeing a small fan (25mm) or so that would mount directly to the heat sink.

Anyone remember where to get that?