Me at the throttle of AUAR engine 191, an EMD GP40 3,000 hp diesel, on March 4, 2005. I had 3 coaches and two lounge cars with about 125 passengers on a cool, rainy day. I am at the platform at Burnet, TX, having just brought the A&TC Hill Country Flyer into town. I tested the dynamic brakes out on our 2 percent grades, and they held as long as the rail was dry. I had wheel pickup coming down the Summit grade and had to back off the dynamics and set the train air brakes.