Does anyone in the US with 2 (or more) gateways know if they have the ability to share capacity with the powerwalls behind them? I've seen some good discussion on the desire for 400A gateways but, since that is not yet an option, I'm curious what happens when 2 200A gateways are run in parallel each feeding their own 200A subpanel. I'm worried in my case that unless the 2 panels are drawing at the same rate (unlikely), I'll forfeit some capacity on one or the other. Worse, I may not be able to drive any larger circuits since each gateway in my case would be backed by 1 powerwall. I'd love whole house backup, but UNLESS they are cross tied in some way this seems worse than the pain of choosing individual backup circuits and a single gateway.