And what about eye strain trying to look at an LCD just inches from your eyes for long periods.

The only shoulder support that I have found (other than Zacuto) that is designed for those of us who want to use the viewfinder is Chrosziel's DV Balancer. I have tried the DV Caddie, the Steady Stick, the Stasis, the CB105 and (my second favorite) the Varizoom VZ-LSP. None can compare to the DV Balancer. It is light as a feather. It takes a while to adjust to your body. Like being fitted for a suit. It works as advertised. The downside is that it is ten times the price of the CB105. After a couple of months of using it, I still love it.
I bought mine from Chris at ZGC.

$655 for THAT???

Chroziel Matte Box on EX-3
 

Here is a photo of the PCI custom tripod plate for EX-3 camera. A gel shoulder pad (not shown) makes it possible to use the camera on the shoulder.
http://www.dvinfo.net/conf/members/p...eivers-etc.jpg