Look at these pictures all taken at DOTG july 1981:
First take a look from the front, looks like he daisy chained his amps from right to the left, plugging into upper left going out down left channel to the next amp:
![Image](http://i76.photobucket.com/albums/j2/Flying_Dutchman/DOTG_Marshalls_E3.jpg)
![Image](http://i76.photobucket.com/albums/j2/Flying_Dutchman/Am028c.jpg)
![Image](http://i76.photobucket.com/albums/j2/Flying_Dutchman/ozz8124.jpg)
![Image](http://i76.photobucket.com/albums/j2/Flying_Dutchman/2707C.jpg)
Hence the outer left Marshall was only plugged into upper left, looks like this Marshall was the last in the daisy chain.
Now take a look from the back, this photo looks very suspicous regarding slaving:
![Image](http://i76.photobucket.com/albums/j2/Flying_Dutchman/tabdotg_E.jpg)
Pay special attention to the cable that goes into the left top cab.
Where does it come from? It looks like it doesn't come straight from the amp on top....... ?
Notice also some other devices right behind the stacks that cable seems to go to.