I have SOS towers on my EMB, I like cf I also have cf towers on my m8.
I think some kind of guard or wider part of the chassis is needed just to give some protection on the esc/motor side.
Has any one tried running the esc on the top mount that the rx is on and putting the rx down there as I do with both m8 and EMB , would it be too top heavy, I might give it a go and see how it performs