EDIT 7-31-2020: This is still a work in progress, and I am now trying to tune the acceleration and jerk settings since my print quality has taken a bit of a nosedive, but I rarely print PETG so it may just be the difference in filaments.
Filament: Duramic PETG (white)
Temps: 233 / 70 C
Retraction: 5.6mm @ 45mm/s (CR10S Pro with Microswiss All Metal Hotend with 0.4mm nozzle)
Combing: Not In Skin
This printer does not have linear advance since it uses the TMC2208 drivers.
Thingiverse seems to be having problems today, but I think the models were:
Smaller Base Stringing Test
PETG TEMP TOWER 230-250