I have started layout of two boards that will work together as a BMS platform. One board contains the switch and current sense FET, which sets the overall voltage and current of the system and has large surface areas dedicated to heat dissipation. The other PCB is the control board with sense and balance network, the actual control/analog front end IC, microcontroller and communication interfaces. I am hoping to get the "Swtich" board out within the next week or so to begin experimentation with it.