Originally Posted by Kiwi Flyer

My RTWs tend to be in business class (best value for money IMO and avoids the problem of dwindling routes offering decent first class). I've ticketed anywhere from 11 months ahead to just a week or so. Although even ones bought at short notice I've tended to booked the bones (prime routes) earlier to lock in availability.

I have had RTWs that I have had to do major rerouting for when a key route failed to clear a waitlist over many months (despite having high status). The hardest routes for availability are generally well known on FT.