right from my experiences of brusless in a blaze ST i would have to say that the only ESC worth looking at is the tekin mini rage, easy to use, easy to setup, wiring points for all your wiring needs. i did have the quark 33a and although it was good, the easy userfriendlyness of the tekin won me over.
as for motors i have used the aon 4900 and its ballistic. its got a slightly larger can than the mamba's so it has extra torque at lower and higher speeds, an amazing motor imo and they go forever. BUT i have found that for racing on smaller or tight tracks it just makes my driving incosistant as you dont have the low speed control.
try going for somthing around the 5400 in the small can range (mamba size)
hth
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