Joe,
There is one stock, two symbols. There is not a seperate bid- ask except for the conversion package. The difference in pricing is the last trade on pink sheets, and the TSX. Schwab said they had plans to better coordinate these values but were having computer problems.
When you sell the shares will actually be done through the Canadien Market maker, but your broker will have to pay a premium to have it done.
Hope that helps. All I can say is like everyone else. "Don't Worry, Be Happy!!!!