Lisa....good luck in your upcoming Du!!
And thanks for posting questions that show you want to have fun but also show some consideration for the others on the course.
On the bike, if you are slower, one of the MAIN things to remember is to stay as far to the right as you can (within reason, of course--no need to ride completely off the road). Partly because it is a rule. If you ride in the middle or left, you are BLOCKING, which is a penalty. And why would you be blocking, because people passing must do so on the LEFT. If you are to the left, how can they pass? Passing on the right is a penalty. And, crossing the center line is a penalty (and darned unsafe). So leave people room to pass on your left.
As for nutrition. For an event of that distance, I'm with Mike....one gel should be sufficient, assuming you ate a breakfast that fuels you and doesn't upset your stomach. OR, I would consider just having Gatorade on the bike.
There are some people who will wear a camelback or fuel belt during multi-sport events, but probably not so much at the shorter distances. If you are not comfortable getting to your bike bottle for water/sports drink, then that is a good reason to have a camelback. Probably not necessary for the run portions, since they are pretty short. Maybe there will be a water aid station on the 2nd run? I would use that if so.
MIKE....glad to hear the training is going well!!!
Jeff...keep up the good work! Some friends of mine are heading your way for vacation and to do the 1/2 IM over there.
As for me...did a sprint race last weekend, and it went pretty well. Will try to get a RR up later, but need to get on the bike now.