As for the race itself I have never been so patient in an IM. I waited until the 10km run marker to start racing hard. This allowed my stomach to be the best it has ever been in an IM race. I took in at least 6 more gels than usual in the last 30km of the run and they were all sitting well. I was taking these with water. The bike (riding my ultra-comfortable Ordu) was a steady effort on the flats, very easy climbs and I let the watts drop to almost nothing on the downhills. I also let the power drop way down with the strong tail winds. I don't see the point in doing extra work to go a few km/h faster on the fast parts when I can have a rest instead....it's a long race.
I figure CDA is about 10min slower than IMC so I'm counting my 8:34 as best time. I pissed away 2-3 min in the last few miles but nobody really cares about times. I enjoyed the finish.