I mine at 360 M/hash using two workers for my account each with Radeon HD 6850. I get about 0.1 +/- 0.02 BTC per day with about 0.008 +/- 0.002 reward per round.
Just checking if that's normal, or I can optimize better?
P.S. I don't pool hop if you are wondering, sometimes I lose my second worker, at which my reward drops to 0.005 to 0.003 per round. I remember a month ago I was able to get 0.007 per round just by myself and its not like the system reward dropped so I was wondering... since all that's changed is the overall hash rate of the pool, from 1800 G/hash to about 2000 G/hash.
EDIT
I use stratum with OpenCl miners on GUIminer version 2011-05-01 since I felt that this one worked the best.