Not LPM ... but I use the last official BMMINER of an S9 without changing it, and he finds, by chance, he accepts the change of tenssion! : d
I just work a few hours (to find the apel code), the advantage is that the BMMINER is the last, so compatible with any hashboard (i think),
on the other hand, I tried my mod, but with another BMMINER, but that does not change the tenssion ...
I am currently running a 13.5 to 15.3Th / 1600W / 725mhz / 900mv
In my tests I was using 675, getting ~14.2 with 1350W and 890mv on a 13.5 old machine on antpool or btc.com, slush doesn't like LPM yet. The wattage varies from machine to machine, mainly
lower Voltages will use less power.