What is Phoenix Miner reporting as the hashrate for each rig? Did you switch to compute mode? Did you mod the GPU BIOS with timing straps or use strap injection? Did you set core and memory clocks for mining or just using stock clocks? There are more steps required to get 30Mh/s than just turn the miner on and let it run.
After finding the compute mode setting, and restarting the mining in compute mode, my hashrates have gone up to 19-23Mh/s, each rig is slightly different. These hashrates are much more in-line with what I was expecting. This was the piece of info I was missing.
Thank you!