I am running a proxy, i was talking about the number of workers. is it better to have one worker at 50GH or 5 workers at 10GH each?
It makes no difference. Here's the 'need to know' bits about blades & proxies (or any large farm behind a proxy):
Stratum connections assign difficulty on a per-connection basis. When mining on a proxy, all your workers are on one single connection. This means your individual worker stats will always be slightly off. The total of all your workers should average out to the proper rate, but one worker might show 2x and two workers might show 0.5x due to share variance. It mostly depends on how many miners share the proxy, and if all the miners are similar speeds.
Using separate workers helps on the pool side because you can see if one individual worker is not performing. Internal monitoring is generally more reliable, but many pools like BTC Guild can alert you when a worker is no longer submitting shares. If you have too many workers on one proxy, you may want to turn that off, or run 2-3 proxies and split your workers.
