As I understood we can run Kano's compiled cgminer under latest stock Bitmain's firmware. We just need some linux geek who has a little free time to try it. 
I couldn't get it to work even with all the linking and everything else mentioned in Kano's README, it would hang after launch ... even if you could get it to work, you'd lose all your changes after a reboot (since you either have to overwrite cgminer or modify /etc/init.d/cgminer.sh), so you'd might as well just be running Kano's firmware ...
Yeah, 225/6386 thus far (30 minutes in) is giving me about the same hashrate (0.85% increase), and more than double the hardware errors (7.43% vs. 2.33%) ...
What was your value for 'timeout' and where did you get it from?I don't recall ... I started with the values at the top of this thread but the timeouts seemed to go in the wrong direction compared to the stock config, and to a degree, logic (getting longer with higher clocks), so I flipped them around and use 36 on 218 ... I probably used 35 on 225 ...