I've only played with one Yank so far, and it worked pretty much flawlessly. However, I can see delays occuring more frequently when playing overseas.
And as such I have to ask, there wouldn't happen to be an European hamachi server? I do seem to recall being in a certain "Meltyeuro" hamachi channel ages ago, but I don't have the password any longer so I can't access it.
So I'm requesting someone to list the info for that or any other equivalent server.
Or should I just pop into your American servers? ~