Phil,
I have had a Pygmy Coho for 9 years now. Building the boat was fun and only took me about three weeks working an hour or two at night. Have spent many of hours on Lake Michigan around the Manitou Islands around Traverse City, Lake Erie around Bass Island, and the Quetico. Very similar conditions that you will be facing in the Apostle Chain. I would not be afraid in any condition to take my boat there for a camping trip.
The boat is fast and tracks very well. Have clocked myself empty on GPS on consistent 3.4 mph paddle with a Greenland style paddle. Does not sound like much but believe me that is moving.
One question you need to really understand is your size in the boat. I am only 5'7" with a shoe size of 9.5. Now why is that important! Well one is the height of your foot at rest against the toe cleats inside the boat. I mostly paddle bare footed, wearing water shoes/sandles just to get into the boat from shore. Much taller buddies with larger feet have complained about not too much on the opening but their feet being bent in the boat. If you are larger in size, especially foot size I highly recommend going to the larger Queen or at least the boats that have the XL or HI within the description. It gives you higher clearances on foot room.
I have nothing but high regards for the Coho. Have spent many two week trips in the Quetico with enough gear to have to portage twice per route. They easily roll in heavy water conditions, even full of gear and I have at no time been worried about the stuff I have put the boat and I through. I have been caught several times between South Manitou Island and Bear Sands Dunes in the channel on a south or north blow. The ranger gives you a 3 hour window to cross in those conditions. Have seen white capping waves in the 6 foot range and cut through them without much effort. Slightly scared the first time but once you learn to roll I would rather be in a boat like that on lake Michigan then a 24 foot displacement hull.
I think you get the point but do recommend the Coho!!!!!
Regards,
Kristan