Hello @Zminer777, just switched from GriPro (GRIN 29 + AMD GPUs). it seems to me performance are pretty the same, but your miner is using less power and much LESS CPU intensive (at least with my 8 x RX570 rig).
Are you working to have better performance from AMD GPUS? Right now they sucks compared to NIVDIA...and as far as I know GrinGro is going to be upgraded with better AMD performances.

Thanks!