*Update*
As requested, users now have a new tab on the Stats page "Worker Stats" to see individual worker information!
let me know when you raise the difficulty, because with a stale rate of 10% is a waste electricity
I've made some adjustments to starting difficulty (just a 16->32 jump for now), as well as how quickly vardiff will retarget you, and the maximum size it will bump/drop you. This should let people get to their 'target difficulty' more quickly. Hopefully this will have a positive affect on stales. I didn't want to get too aggressive with it, but I can continue to adjust further as I get more feedback and monitor the results of these changes.
Do you reduce the difficulty when we mine the faster coins? I have a lot of stale on WDC in a rig with 4 X 7950 with intensity of 19.