MarkD:
Zoom's double stops are not the same. A double stop is when you serve two nearby departing markets or arriving markets.
Examples of double stops:
YVR-YYC-PUJ
YVR-MAN-LGW
YYC-POP-PUJ
And comparing a 767-300ER to a 737-700 is an apples and oranges comparison and therefore carries no wieght. For each aircraft type there is an optimum way to use it to achieve maximum profitability. WJ has be extremely successful to this point.
But good luck trying to haul people all over hell's half acre to make a buck. Flying YYZ-YHZ-LGW increases trip distance by 6%. Additionally, WJ's smaller aircraft has relatively higher per seat costs versus a larger aircraft. Out of YYZ, YOW, and YUL WJ will not be able to compete with price and will not be able to compete with service.
But good luck trying!