Thanks "rocksnstumps" you answered the question about stumpage rates better than I could have done. One thing to know about the MFL program is that it is constantly being modified by the DNR.
For me, it just came down to the fact that I do not want someone telling me what I can or can not do with my property. The money you get from the government as a tax break comes with strings attached. If you are okay with those rules and restrictions, you should enroll your land in the MFL program. Please remember that I stated my land was in the MFL program over 25+ years ago.
When I withdrew my land, the amount of money I paid to get out of the program was the difference in the subsidized MFL tax rate and the regular tax rate that would have been on my land. I do not remember if there were other monetary penalties for withdrawal or not.
I have no ax to grind against the MFL program. After trying it out for several years, it was just not for me.