has anyone evaluated running multiple instances of slush's proxy but on different ports... like the --gp 8332, --gp 8333 etc? Or do you believe this would likely not provide better results?
This is the way I do it, so I have multiple workers. I've got 2 instances of the proxy for two pools - so it's 4 instances of the proxy running. The Blades and the Cube go to their own pair of proxies.
So, I have 4 shortcuts in Windows startup - Cube Eligius, Cube BTCGuild, Blades Eligius and Blades BTCGuild. This allows the miners to swap between pools automatically if one pool is down. All 4 shortcuts point to the same .exe so no real issues.