I disagree, I think the old Mamba Max is much much more robust than the Sidewinder SCT. It never had any bec issues until 4s which was out of its rated voltage anyways, unlike the MMP and Sidewinders which seem to be hit or miss. There is still a few guys around that run the orig. MM in 8th buggys on 3s with no external bec, they stick with it because they have not had the issues most other ESCs are facing regularly. I cant say no one has had issues with it, but most guys I know say it is one of the strongest ESCs ever built.