Started using your miner with version 6.0, I believe. Was getting ~140 h/s with a rx 480 red devil with core clock set to 1380 for most of my mining. Using -nofee (sorry!)

With 7.0 I was getting ~165 h/s

With 8.0 I'm getting 180-190(!) h/s, with -i set to 6

No instability issues with your miner, ever. While others have sent me to BSOD for various errors they have.

Incredible work Claymore! Looking forward to what else you can squeeze out of this gem.