I'm using a Freezer Xtreme with mx2 paste. When I first got the cooler I threw the plastic pins as far away as I could and secured the mounting bracket with an old 775 back plate from my old Alpine 7. Also, the screws that are supplied for holding the cooler to the bracket were too short so I replaced them as well.
(when I say too short, u could use them but for a piece of kit that weighs more than half a kilo, u want some added security !)