Stop to attract to SRB miner. It unstable in hash speed as hell! To get max speed for my 580 cards I relaunch it 5-10 times. Rebuilding kernel bins is also different story...
Claymore's miners are stable as rock! Fast starting, stable speed.
Plus SRB miner slower on old 2xx and 3xx cards.
If people didn't like Claymore's miners they didn't use them.
Some people swear by one miner over another with almost religious fervour, I've used lots of different miners and use the one I feel happy with, be it Claymore, SRBminer or whatever, it sometimes comes down to a matter of individual preference, but one will never convince the fanatics - Die Heretic !
I use SRB miner right now. But it doesn't means that it's the best one. If Claymore returns to develope CN miner it can do best of them. That's why we here. I don't know what you're doing here...