Recently I picked up a few rolls of Bambu PET-CF to experiment with in my Bambu P1S. I know Bambu recommends a .6mm nozzle for PET-CF, but most print instructions recommend a .4mm nozzle.
I just finished printing an SL-9 lower in Polymaker PLA Pro with a .6mm nozzle and .18mm layer height to see what issues I would run into with the larger nozzle, and everything seems to be mostly fine.
I'll continue testing when I can get some range time this week or next, but are there any pitfalls or potential issues I should watch for, either with printing 2A parts with .6mm nozzle generally, or recommendations for PET-CF and .4mm nozzle?
