Question for Echoplex experts.

[Chris Sewell <chris@gguitars.com>]

I just purchased an Echoplex. I upgraded, or at least added from an RC 
20. What Im interested in figuring out is this. I would like to 
incorporate different instruments into my performances. Bass, possibly 
some percussion of some kind. However, with one Echoplex I am limited 
to just one channel of the mixing board. Is adding a second echoplex 
the answer? It seems the manual is telling me they can be synced up via 
Midi. So conceivably one loop on one machine will tell the other how 
long a cycle and other parameters as well. In other words, can I play a 
loop on one machine, then switch to bass and   add to the loop on the 
other machine and they sync up? Will multiply also work? My mind is 
spinning with possibilities here. Any info would help.
Thanks and Merry Christmas.
Chris