I own the 7020 and the mamba max and I think the smoothness of the two are comparable. Although my 7020 is geared low to reduce amp draw in my hyper 7 and the mamba is geared high for speed in my touring car. I'm sure that makes their smoothness seem comparable, but I have very good low speed control on my buggy. I am also using M1 cells so a cut-off is not needed. I guess as long as it doesn't break :013: