Just run 11.3
I have 2 x RX580 with 8 Gb (bios mods) and 3 x RX470 with 8Gb (no BIOS mods) in my rig.
For testing I've choose auto detect -dcri value and miner detect value of 30 for all 5 cards. For RX580 -dcri 30 is the wright choice for best ETH+DCR mining output. But for rx470's -dcri 30 is not the best one, the best one is 24.
I believe the miner is not able to chose best -dcri value for different type of cards in one rig?
However it is a useful option to help find best setup.
Thank you Claymore.