I have the mamba max and I've had some problems.
First the switch fell off. Just like that...the wires came out the switch itself so I toss the flimsy thing all together. I cut the wires from the board and soldered it direct. No switch but there's no problems for me with that done.
Then when I crashed my basher TC the heat sink flew out the car at LightSpeed. (Ask me how I don't know ahaha)
So I had a fried novak laying around and took the heat sink from that. (Purple mamba max
Then I had REALLY bad cogging(with stock settings) so I chopped off those silly ass connecters. Soldered it direct wire-to-wire...problem solved.
With these things fix nothing is wronge with my esc. Only thing now that could go wronge is it exploding and my whole car gets roasted(that would be cool and heart breaking to watch