I could not get a 0.6 to stop oozing and stringing with petg and pla. Just couldn't so switched back to 0.4. Dragon hot end w. Bowden tube after titan extruder.
can't believe it - I was stringing and clogging with 0.4 (likely trouble with retraction but tuned to hell and back) but running same parts at 0.8 (granted not detailed, but functional big parts) without stringing, same retraction settings, and 40% print time it's wild