All~
I've spoken/emailed John Schultz directly in regards to when the NEC 2008 would be adopted in MN. It won't be probably until this fall sometime. The statement in regards to the test will slightly change is ture, but at this moment just study the 2005 NEC.
As far as questions on the test - I do have 60% of 3 times of the Journeyman test written down and willing to share. I'm not sure if the Masters will have these questions or not, but it gives you an idea of what they are looking for.
I also know of some people going to take their Master's here soon, so I'll see what I can learn from them.
The prep classes are okay, but they don't know what is on the test. They just run you through everything in 2 days, cramming essentially. If you want to spend the $$ you can. But from the recomendation of John Schultz, don't waste your money. He said just know your code, and know it well. The better you know your way around in the code book, the questions won't be that hard. Of course there is the calculations that everyone needs to brush up on, but don't get too over worked about it.