So, I finally dumped in my canoe... 4 times. With a lower water level, there were lots of rocks in the first stretch of river prior to the merge. Unfortunately, with my trip mates being new to canoeing, we had a tough time balancing. As time went on, we got the hang of it though.
With all the dumping, it took about 5 hours to go 11 miles. While that was a far cry from my solo kayak trip a couple weeks ago, it still felt like we kept a decent pace.