" Can I add existing Xbox LIVE Gold members to my Family Pack? For example, my kids are already Xbox LIVE Gold members.
A: Yes. When an existing Xbox LIVE Gold member is added to a Family Pack, the remaining time on their Gold membership benefits the whole family! For every two months remaining on their current Gold membership, the entire family receives an extra month of
Xbox LIVE Gold."
My family is currently on 3 separate Gold accounts. We think this service is a better option, but my son just received a 3 month gold subscription code as a gift. He hasn't activated it yet, but if he does and THEN we add him to the family account. Does he get to keep the full 3 months on HIS account while the rest of the accounts are prorated for 1 (or 1.5) month(s)? My point is, lets say he adds it prior to the family account activation. Will he be granted a 15 month subscription or will it dilute those 3 months into the family pack as the prorate to the other accounts?
Basically is it even worth using?