utahjohn: these are my configs (x11mod kernal)

"api-allow" : "W:127.0.0.1",
"api-listen" : true,
"api-mcast-port" : "4028",
"api-port" : "4028",
"expiry" : "1",
"hotplug" : "5",
"kernel-path" : "/usr/local/bin",
"kernel" : "x11mod",
"log" : "5",
"queue" : "0",
"scan-time" : "1",
"shares" : "0",
"gpu-fan" : "auto",
"gpu-threads" : "2",
"gpu-dyninterval" : "7",
"gpu-engine" : "1200",
"gpu-memclock" : "1500",
"gpu-powertune" : "20",
"intensity" : "16",
"temp-target" : "75",
"temp-overheat" : "85",
"temp-cutoff" : "90",
"temp-hysteresis" : "3",
"vectors" : "1",
"worksize" : "256",

"thread-concurrency" : "8192",
"no-pool-disable" : true


Amd catalyst 13.251, sgminer (x11mod 03/06/14). Asus r9 280x direct CU II with powered pci extension cable, open air frame
hope they help, they give me 3.5mhs!