Search the Ark https://fosscad.io/c/ark if you haven't yet. With PET-CF, you will get a lot of different opinions. PET-CF prints great under a wider arrange of settings, and you won't really know if the layers adhered until they snap.

When you find the settings you want to try, print something small and see how hard it is to snap along the layer lines. Then adjust. When in doubt, hot and slow with minimal cooling.

Venturing out into engineering filaments should happen after you learn how to tune your printer and filament profile. It will stop you from needing to ask other people how best to print filament on your machine. Ellis' tuning guide has the most in-depth tuning rhetoric that exists and you can use it as a framework on your end