Have you ever tried, when playing the bit with Camathias on the Gilera going round Governors bridge, adjusting the left and right speakers, so it appears to climb the stairs!!
Oh, boy, that noise...those were the days!!
Mind you, the Dukes sound pretty nice.
I am pretty sure you can get all the sound stories on CD from Duke...have a look at the website (I'm scared to look, cos I spend money every time)