I find it quite remarkable--and a bit unfair--that Tyco can consistenly keep a train running absurdly fast (> scale Mach 1) on the track--while scaling a vertical surface on across a 180-degree arc, flipping upside down through 360-degrees on a vertical loop, and jumping an open gap on a grade--while we can't keep a switcher pulling four freight cars and running at 10 smph on the rails... grumble, grumble...