I have mined 10+ hours on ethermine with TBM with the settings that I found better for lowering stales (1-2%).
My all the rigs are watercooled.  

POOL SIDE:
https://ibb.co/WGKRtgd
GPU CONFIGS:
3090 AND 3070
https://ibb.co/vkQQ50M
6800XT AND 1080 Ti
https://ibb.co/6yw7R5T

In miner configuations:
3090 and 3070 running with: --nvidia-only --no-verbose --dagintensity [1,1] --xintensity [64,64] --kernel [8,5]
6800XT and 1080Ti running with: --no-verbose --xintensity [8,64]

If there is any suggestions to improve the mining then please let me know.