Hello and welcome!
Prairie Man vs Longhorn. I know both courses. I have raced out at the Prairie Man location and did a relay for that race. I raced the Longhorn last Oct.
I say the Longhorn. Better all the way around. The bike course is better at the Longhorn, and now it's an offical 70.3... so it will be even better ALL the way around this year. The Prairie Man is a great race though put on by a solid guy.
I rode my road bike at the Longhorn. Even though I have a tri bike. It was fine. Lots of road bikes out there.
Now I'm just trying to convince my coach to let me ride my road bike at my IM!
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather, to skid in broadside thoroughly used-up, totally worn out, and loudly proclaiming: WOW WHAT A RIDE!!!!"