I’ve read a lot of your helpful comments kcchen_00 throughout my forum searches…great contributions. I had played with retraction settings and extrusion temps plenty. They didn’t make a difference in the battle with heat creep.
I get the impression that the Dual V3 works well for plenty of people, and not so much for others. I don’t understand what the nuances between one unit and another could be to give one person success and another failure. Like you, I see the print quality comparable to the single extruder toolhead. Good looking prints when it works. ABS worked best for me because it is less vulnerable to heat creep. But I need to print with PVA too.