Architecter vcenter 6.0

I am thinking about Architecter vcenter 6.0. I have 3 sites and I want combine them in "Enhanced Linked Mode".

There are samlpe architecture vcenter 6.0 here http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2108548

I select that

In that case vC-1 and vC-2 works with PSC-1 whereas vC-3 and vC-3 works with PSC-2.

Questions:

1) If PSC-1 fails, can I access to vC-1 and vC-2;

2) Or you recomend me use architecture with load balance beetwen PSC and vC.

Thank you!