I was reminded recently that temperature and retraction are closely related. I had run a retraction tower and dialed in my settings. Then I ran an actual part in Cura and kept getting stringing. Turns out that I needed to run a temperature tower, then rerun my retraction tower. It’s an iterative process. Setting retraction, but then increasing the temperature (like I did) will cause the filament to ooze out of the nozzle and give you stringing, despite having the proper retraction settings.