I am doing my darnest to piece together a trip to Europe in the summer using CO points. I have found availability outbound on July 31st AC866 for four people in business class. I found this both on continental.com and aeroplan.com. However KVS tool (presumably through ANA) shows CS- for four seats. It shows CS+ for two seats only. Any idea why? One possible explanation could be something along these lines... on the return plan to use VS and virgin-atlantic.com is showing availability but continental.com not. I called in to ask and they said VS only show CO two seats at a time. If four were available it's likely you could book two then the other two would show up as available. Wondering if ANA does similar with AC?