I have the Shimano XT system wheel set, and I need to do some truing. I'm familiar with truing of regular wheels, but Shimano made the set up a bit different with these wheels. Click here for info if you don't know how it's built.

Now, for tightening a spoke, should I turn the plug or the spoke? If I turn the plug around to many times, it will eventually come loose, so by that I guess I should turn the spoke... But I'm not sure.

I really hope any of you can help me with this question.