Can´t find any decent answers, so I make it short and dirty:
I´m mining TRC on EU server because I have much better pings (sitting in EU though

).
Here I can´t adjust the mining diff because that´s for US servers only, I know.
But why should I increase it?
I´m mining with Erupter Blades (13GH/s) on diff 1 which seems pretty low to me. Would it be a more stable and effective mining if I would switch to US server and increase diff to something like 32?
User-selectable difficulty will be live on all servers soon, I just need to work out the bug that was causing the issues.