Use Claymore v11 with -allcoins 1. It's completely free with <=2GB cards, so no Dev fee to worry about. Now that ASIC's are out for DCR, you are much better off mining XVG with ~600% better profitability. You can also convert the XVG to HODL DCR if you want to.
Ahh I didn't know that, thanks!
One issue though, 3 of my RX560's are 4GB cards (10 x 2GB , 3 x 4GB), is that going to cause issues as the 4GB cards will try to mine ETH right?
Like it says in the v11 README:
This miner is free-to-use, however, current developer fee is 1% for Ethereum-only mining mode (-mode 1) and 1.5% for dual mining mode (-mode 0), every hour the miner mines for 36 or 54 seconds for developer.
For 2GB cards (they cannot mine ETH/ETC anymore) devfee is 0%, so on 2GB cards you can mine all ETH forks without devfee, this miner is completely free in this case.
If some cards are 2GB and some >2GB, 2GB cards still mine for you during devfee time, only cards that have more than 2GB memory will be used for devfee mining. Miner displays appropriate messages during startup.
The Dev fee will only be mined with the cards that are >2GB.