Tom,
From my research, which you will no doubt totally discredit, and I don't blame you one bit, Thompson just didn't say, "Here, you take America and I'll take Canada." He was actually slowing down a bit. Spending more time concentrating on some get rich scheme with cattle that ended up with the Thompson Brothers losing everything. Stanley decided he was going to do a course in Venezuela, and I think it was just one of those deals where Mr. Over-rated decided to get a start on his own in America. At least from my information, plus, some of that came from Geoffrey Cornish. (of course, not the negative stuff)(Maybe Bye can help.)