This means that the MGM is a good esc, but the MM is capable of doing the same job. If there aren't any obvious reasons why I should get the MGM then I might save some money and get the MM.

I forgot about the Neu + MM problem. Thanks for reminding me. Would the MGM perform better than the MM with a Neu motor?

I should just get another Quark.......but one of the best things about this hobby is trying out new products.

@captain - thanks for the info on the manual.