Morning all,
I've managed to confuse myself concerning strong points and discovered that I made an error when started Topic: SM: Privateers VM Construction & Design: Hard and Strong Points, which should have been Topic: SM: Privateers VM Construction & Design: Payload Pallets.
Anyway, per the text on p. 98, all valid strong points are free but adding any strong points above the valid requires that cost, volume, and mass calculated, right?