The US pool is more profitable, but has frequent disconnects. So if you have a large ping to the US server, or cgminer is unstable because of the disconnects, use the EU server. Otherwise stick with the US server.
The EU server is constantly on DOGE for the time being.
The disconnects will be fixed within a few days. They occur on coin switches, and I'll be rolling out some new code to do it cleaner.
My ping to the us server is 190ms and to the eu one 25ms. Can anyone tell me if it's worth switching back to the us pool for the more profitable mining?