On page 16, it says BV and PV cannot be paid to increase unit skills in the Hinterlands; right now, I'm assuming that DOESN'T include cybernetics, which do still pay (e.g. a Pain Shunt still costs the same as a Pilot Skill Modifier of -1, but since it doesn't actually modify the pilot skill, it is allowed to be paid for in BV/PV).
However, I wanted to confirm by asking here.
