Yep. I have to send a thank-you E-mail to Midge and Andy at MTH for taking my suggestion to heart. My scale-wheeled Big Boy arrived Monday and I ran some track inspection tests at the club tonight. It found several bad spots, but it did negotiate 36" radius (O-72) curves, including a Ross turnout. It ran very smoothly with very good sounds. Can't wait until the prototype is operational and MTH makes a sound file from it. I'm going to put a Kadee on the rear and bring it back down Saturday, but the uneven spots in our track really drive this one nuts, so it will (for now) only make brief appearances at the club, but I know a couple of layouts where it should run nicely.