balancing unibus load

[bruce at godot.UUCP]

We recently installed a second unibus on our 750, and I am interested in
thoughts about how I might even the load in the long term (our machine is
not used heavily enough for it to make much of a difference yet). 

I know it's very usage-dependent, but I am interested in hearing any
guidelines y'all might have.  Here's our configuration:

	1 uda50 with 3 ra81 and 1 ra80
	1 tu80 (ts11)
	1 dz11 (with 1200bps modems used for dail-outs and -ups)
	2 dmf32 (local 9600bps terminals)
	1 interlan ethernet interface on a local chaosnet
	1 lpa11 (not yet used)

I'll gladly summarize replies.

--bruce