Thanks!

Random queries sound like a good extra tactic. It would prevent any of my 6 (unrelated afaik) DNSCrypt proxies from knowing with certainly about where I'm going. The queries would have to be somewhat credible and randomly timed to stop the noise from being easy to filter out, but that doesn't seem insurmountable.

I think the VPN aspect is already taken care of by making all queries via those independent proxies. Is there something else a VPN would help with that I'm missing?