I just built a pretty big FIM2010 R2 solution in a development environment, and now was the time to migrate the whole solution to new production servers. Well, I was pretty nervous about it. I have previously used Microsoft`s solution (here), but this time I had _a lot_ of MPR`s, Sets, WF and also a big set of custom workflows.
I tried to find something useful on google, maybe some tools or something that could help me along. It was a dark journey.. But the I found Rex Wheeler`s blogpost and scripts here
I followed the guide step by step and did the whole migration in a couple of hours! It`s by far the best FIM migration guide I`ve seen so far!