2 weeks to Tucson! Getting psyched! Been doing longer training rides....but don't have the nutrition thing conquered. Today (on a windy 80 mile ride) I was eating a Cliff Bar along the way and drinking Endurox, I also stopped at 30 miles for a small lunch but started bonking somewhere between 40 and 60 miles. Then I made a stop at 60 miles, ate a little more & downed a gatorade and got a 2nd wind for the last 20 miles. I've had similar problems in the past on long rides but today the slump was bad... Do I need to eat more all along the way? Do you guys use Gu?