Pondering wrote: Strategic voting has to be done riding by riding or it isn't strategic.
I don't disagree with the principle, but I question the terminology. Doesn't a riding-by-riding approach make it "tactical voting"?
Full disclosure: I tried it once, back during the Chretien years. In my riding at the time, the only chance to unseat the Liberal incumbent meant voting Tory. So I did.
I felt so dirty afterwards. But it worked.