I’ve got you now guys. The short answer is yes, LVP can work with multi-cell zener setups. It doesn’t just happen though - we use a voltage divider and that must be setup correctly. You don’t need any math to get the job done, or understanding either actually. You just need to know what to punch into the calculator I mentioned earlier: http://www.raltron.com/cust/tools/voltage_divider.asp
You know the voltage you want to shutdown at the light (2.9v per cell, 3v per cell, whatever... those would be 8.7v and 9v respectively in 3s setups). The stock values used in the STAR firmware will shutdown the light at around 0.5v coming out of the divider, but I do not know the exact value. RBD put some effort into it but I don't recall if we came up with a precise value. 0.513-0.517v may be about right for shutdown (not rampdown). To calculate the resistors for the divider, put in 3 values and the calc will give you the fourth, for example:
Input Voltage - 8.7
R1 - ?
R2 - 4700
Output Voltage - 0.513
That yields an R1 value of 75007.6 Ohms.
If you want to use the calculator to simulate the original Nanjg 105c divider, you must remember one more thing. In that setup there is a protection diode which reduces battery voltage before it hits the divider. You must subtract that diode's Vf value from the input voltage before running the calculation (Vf is in the neighborhood of 0.25v to 0.4v, look at RBD's thread linked above for more info).
RBD or RMM may chime in with more specifics about the actual working resistor values or a more precise "output" voltage than what I wrote. I haven't done much work on this myself.