I've been reading "Going Long" by Joe Friel and Gordo Byrn. A lot of good pratical advice in there, though I think I'd probably self-destruct if I tried to put together a training plan from it. A lot of it's a bit over my head at this point.
But one thing they talk about that's pretty relevant to me is the discussion of "limiters." A limiter can be as simple as weighing too much, or being a poor swimmer, or it can be a bit more refined, like your approach to pacing during the bike leg. It's got me thinking about my limiters. So let's see -- here's three off the top of my head, with thoughts on how to correct them.
1. Too heavy. OK, Carmel would slap me for saying that, but I do weigh a bit more than I need to. I weighed about 165 at the time of Eagleman back in 2006. I've stayed near that since then, but I've drifted up a bit this winter and I'm at around 171 now. Better diet, less beer and more training should correct that over time. No need to panic or diet.
2. Bike endurance. Relative to my age group, I ride pretty well, but I don't always come off the bike as well as I'd like considering my strength as a runner. In an Olympic, I can run pretty close to my 10K standalone time (46 minutes olympic vs. 43 standalone), but I've had less success in longer races. My standalone 1/2 time is 1:34, but I've never broken 1:50 in a 1/2 IM. More long rides and better run pacing would suggest themselves as answers.
3. Focus. I've got a tendency to get too caught up in the moment when I'm racing. Getting too pumped up is bad for my pace, and getting frustrated with other racers for sloppy riding, etc. is just wasted energy. Got to work on just getting in a zone and chilling out. A lot can happen in the course of a long race, so I'll need to stay on an even keel. I'm looking forward to my 25K trail race coming up -- it should be good experience in going with the moment and rolling with what comes.