No, we didn't make it east of Lake Simcoe. Maybe next year!
Big Chute was really neat. We were the only boat on the way down so we had front row seating. Given it was mid-week during both runs, we had little or no waiting at any of the locks.
Georgian Bay was near calm the whole way up to Pointe au Baril but quite choppy in the exposed areas on the way back (two days of strong wind warnings preceded our departure). Other than a little rain on launch day and the night we pulled out, the weather was perfect and the kids had a blast.
We highly recommend a trip like this to anyone thinking about it.