Now that we have the new version of CGminer 3.12 in the latest firmware can we proxy our S1's?

I've tried it with the same results as the old version of the firmware and CGminer 3.8 and still only get 100% errors.

I'm not a CGminer expert, so I'm not sure if changes need to be made to the CGminer config to get proxy to work.  I'd really like to be able to proxy through BFGminer and my  other mining hardware to setup to my pools.