The point I'm actually trying to make is this:
If Oscar Whisky was in against Five Dream, Dynaste and Mourad, his chances of 'staying' 3m would be pretty good. His chances of 'staying' the trip are not dimished by the addition of Big Buck to this field, but his chances of 'winning' are - because horses capable of running to 160+ at 2m, 2m4f and 3m are very rare indeed.
Plenty horses are capable of 160+ form at 2m and 2m4f i.e the aforementioned Hurricane Fly and Solwhit, as well as OW himself.
Plenty of horses are capable of 160+ form at 2m4f and 3m i.e. Limestone Lad, Iris's Gift and Grand Crus.
Where are the horses capable of 160+ form at all three trip? We can go back as far as we like and the numbers are puny.
OK, it's essentially a trends/statistical argument, but it's one which carries a degree of merit, imo. And even if Oscar Whisky can run up past 160, that might still see him beaten by a dozen lengths.
Euro, Dynaste had Big Bucks no more "at it" than many other front-runners have when he's hit a flat spot.
I can understand why people would want to look elsewhere, as BB's peice is very narrow, but trying to get the jolly turned over is pretty-much futile, imo, and in a W/O Big Buck's market, I'd not be looking to take short-odds about an unconfirmed stayer like OW. There are better options out there, imo.