I have a pair of the NRS Storm Boots that Navy Seals wear and have used them on 4 or 5 Quetico trips. They are great for traction and support. They keep your feet pretty warm even though they are not waterproof. They are like wearing wetsuit booties with an external support webbing system and a durable, flexible sole. If you get them, get those quick lacing buttons that are available for snugging up boot laces. Then you can cut the laces off short and tuck the ends into the boots. Otherwise, the long laces will snag on everything when bushwhacking. Another suggestion: if you wear them without socks they stick to your feet with unbreakable suction making them really hard to get off when they are wet. Get a couple pairs of those real lightweight polypro liner socks from Wigwam. They are so thin they don't interfer with the boots skintight fit, but they allow a little air to enter the boot when you are trying to get them off at the end of a wetfooting day.

I also have the Chota Breathable Mukluks and have used them on three Quetico trips now. You are absolutly correct about the lack of support and poor traction, especially on slippery rocks and logs. They are warm and dry which is important to me since I go in mid-May every year when wet feet can be pretty miserable.

Not sure yet which ones I'll wear this year.  :-/