That would definitely suck lol. It'd be a bit daft to have a 6S capable ESC, but only a 4S cutoff lol...I hope they sort that out. The Micro Pro looks nice though...I wonder what the specs are on it. Sounds like this is the "Mamba 35" to me. Apart from the MMM, the one I'm really looking forward to is this "Mamba Pro" that apparently is on it's way...