Can you please share the settings you used to eliminate the stringing? I've been tearing my hair out trying to fix this. I've used retraction as high as 60 with a retraction speed of 18000 and not having much luck.
I think I may have fixed my stringing problem. All the advice I've seen says to lower the temperature to get rid of strings, and I tried that. Weirdly, though, when I raised the temperature the strings went away. This is a complete mystery to me...maybe there's something different about the design of the Cetus nozzle that makes it behave differently from every other printer on the planet.
Posting this here for future reference if anyone else is having problems with bad stringing when using gcode on a Cetus...