<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by Retired FF:
An intial itenirary could be:
1. YOW-YVR-HKG-BKK on H class
2. RTW: BKK-MUM-SIN-MNL-SIN-DEL/CCU-SIN-DPS-SIN/KL-HKG-YVR-YOW-YVR-HKG-BKK
3. BKK-HKG-YVR-YOW ( return of the H class ticket)
Does this make sense!</font>
Your RTW portion is not round the world, as you won't have crossed the Atlantic, but that's easily fixed by heading east from YOW through Europe back to BKK. You're also right on the limit at SIN as 3 of your 4 times there will need to be transits only and the 4th must be as a stopover.