I just created a database for YVR-HKG for the next 30 days using the "judgement point" that exAC stated. [30 days, 14 days, 7 days, 72 hours, 24 hours] Anything outside of 30 days won't do me any good as i don't ever book that far out.
I can already see a trend in C class. Almost nothing 30 & 14 days out, always available on on flights within the 7 days window, zeros again once the 72 hours comes around. I'll need more data to comfirm this simple hypothesis but give me about a month and I think I'll get real good on this.
Moving on to other routes now... [I am doing YVR/HKG, YYZ/YVR as starters, any other routes you guys are interested? I won't bother with commuter routes for now as there are hourly flights and not worth wasting time on it since most of us won't get upgradeable fare on those routes come March.]