On the
https://www.btcguild.com/stratum_beta.php page, I just noticed the difficulty of each new row increasing by 1 and the PPS rate column changing accordingly - did I miss something about how difficulty works?
Since the stratum beta isn't expected to last long, I've been keeping it simple. The stats it shows by your workers are for the current difficulty. When I want to reset everybody's stats after a server reset, I decrease the difficulty of all previous submissions by 1. You end up with a few satoshis of extra income, and it saves me the trouble of adding a bunch of reset counters to each worker entry for the beta.