Custom Resolution Utility (CRU)

[snoopi]

What is the best method and options to use for custom resolutions?
I have RTX 5090 and a zowie 600hz TN monitor via HDMI 2.1. The monitor also has DP 1.4, but I think it uses DSC either way.

My aim is to use 1728x1080 @ 600Hz with Dyac2 and the lowest input lag and possible!

With previous GPUs, I did the registry hack NV_Nodes and everything worked fine. The RTX 5000 cannot do the Nv_Nodes hack anymore. So I use CRU. What timing should i use? Automatic PC or Exact, or Exact reduced? Etc.

Does using CRU and the reccommended timing for my setup affect operation of Dyac?

I would just like the best possible outcome for competative fps gaming. Would appreciate any help here, thank you!