@fancyIX works good for me without rejects. Only needed to lower intesity to 20 from 21.
 mintpond works better than 2miners.

Only one question what could be a possible issue that i can't use -g 2 option? error -33\43 different.
Rig has 8gb ram. linux.  6gpu
-w 64 -I 20 works good. If add -g 2 = error.

Btw you kernel works faster than djm34.  https://github.com/zcoinofficial/sgminer/releases