Norman: Assuming that the new valve on the LR side is not leaking internally and that the new fittings on that valve are not leaking, then it is likely the fittings on the bags or the bags themselves.

Luxury Coach has a new manager and Brandon of Legacy Coach is the new owner. I would call them, explain the situation and ask them what they are going to do. Based on my experience, they will take care of you.

Keep me posted.