I have noticed that before as well but I always just kind of blew it off as the MN DNR not being crystal clear with their regulations
However an email to the MN DNR asking the questions of purchasing multiple tags would be a great idea.
As for the second portion of your question I would think that the last 4 time periods are truly unlimited. I also think they would have a pretty good idea of how many hunters will purchase an OTC for the last 4 time periods and how successful those hunters would be by looking at previous years results. This is another question that could be sent to the MN DNR for clarification.
I have emailed the MN DNR a few times on other topics and have found them very helpful.
Let me know if you are or anre not going to send the MN DNR an email as I would be happy to do it if you don't.
"Strength does not come from physical capacity. It comes from an indomitable will." --Mahatma Gandhi
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