I don't know that one specifically, but it's not listed as the worst one in a book that I purchased that is directly written on MN carry laws. It's in the green 0%-2.5% denial rate, I assume this is for in state but I think it would carry over.
If I were you, I would call them specifically and speak to the person there that runs the process and make sure you just go over what they are looking for, say your name at least 3-5 times. Even if you know everything you need to send. That way when they get the information, the name will ring a bell and you may go through more easily.
Just a thought....