I don't know where Claymore gets his additional 5-ish percent performance increase from, but I really can't keep up with the features he keeps adding to his miner. But mine is free   


I don't think Claymore's miner is faster, I think he gets the increase because his stratum protocol works allowing a direct connection to Dwarf.  Supposedly this makes a big difference going direct rather then over eth-proxy...  If you got stratum working with dwarf I think you would be just as fast.  Great miner.  Thank you for your work.  Good way to verify would be testing solo mode with each as solo mode must use HTTP.