Last year I bought a Kestrel Talon carbon bike with 105 Shimano STI Shifters. I put the bike on my indoor trainer and began to ride it. I hated it. I couldn’t get use to the lean position for time trialing.
For now, until I get really fit, and a lot of mileage under my belt, I’ll stick to the upright position. Here are some pictures and a video of removing the handlebars.