Thanks for that.
To clarify - I'm getting a consolidator ticket out of HKG to East Coast USA (V class) that does not permit stopovers in Canada.
Was thinking to "transit" YVR and YYZ but not sure what the max permitted transit time would be - i.e. 23.59 at each stop or 23.59 total.
The MPM should be OK as I've done HKG-YVR-YYZ-East Coast many times before on this fare (before the HKG-YYZ "direct" flight this routing was the only way).
Wish I could upgrade, but being a lowly Elite buying a Y or M fare is a tad extreme! Roll on next year and SE...
Angus