I have never been able to get it right in Busso it has consistently kicked me in the balls. As a friend said to me once times are a little irrelevant its more about finish position overall/age group.
I had a great day in Melb's 2012 (9.49) and finished 220th overall 2 years later had a pig of a day in NZ (10.30) and finished 160th which was the better race??? Incidentally 9.15 would have got a spot in both races.
I reckon no Ironman is easy and no matter where you go if you want to go fast it's gunna be hard!!