Yes, absolutely but Im now back in ETH only mode [-mode 1] and I am still seeing these issues. I dont know why. My MH/s is still down at 118MH/s whereas my rig should be getting at least 140 MH/s as it used to before [6x GTX 1060].
With the claymore window open (in dual mining mode), play around with "+" and "-", it changes ur intensity on the fly, and press "S" to see ur current hashrate.
usually at around 18-22 for intensity, you will get the same eth hashrate as single mining.
I never used the "-mode" command, I'd rather just erase the dcr pool address/settings from the bat file to disable dual mining.