It's a very difficult race to predict now CorD, since the fence modifications they are going quicker than ever placing an even greater emphasis on stamina and as there's nothing in the calendar at this distance we're almost guessing at whether a horse is suited to such a test.
The trends are changing, the only solid consistency is that recent run, so whether it's a competitive race at Cheltenham or hacking round in a class 4 2m hurdle race at Catterick is irrelevant, a recent run is necessary.
The cross country is run at below racing speed for over 3m, twists, turns, banks etc prevent the horses from reaching proper racing speed until they come out onto the course proper, so it might appear the 3m 6f race is an extreme test of stamina but that's not a view I share, Cause of Causes beat everything bar the winner so tackling the cross country is hardly a negative in my eyes....