As someone that just built a new rx 480 x6 mining rig -- I would not try this setup until I hit my ROI. Likelihood of burning out cards is higher when stressing them with untested shit like this. 

My rig has been stable and hasnt required any additional attention after updating Claymore versions every few days. Not looking to babysit this rig for all eternity.

It is a good thread with some valuable info, but personally I would avoid doing this for the time being. Let other people burn out cards and provide software updates.