i understand, thing is my rig has higher average hashrates on mintpond using older 2.1.19 build with intesnity 20 and gridsize 4096 on all 5 GPU, with later builds it has intensity 15 and grid sizes are 7000+ for GTX1080Ti and 5000+ for GTX1080 but i don's see any hashrates improvements in 24 hour period, difference is around 1mh/sec daily average 16mh.sec+ VS 15mh.sec on newer builds, so maybe better to use older build at the moment with lower default gridsize, miner hashrates itself are more or less same with both builds