I purchased a 0.4mm and 0.6mm PCD Durozzle a year ago. They were for my aftermarket hotend on a Bambu P1S. Worked flawlessly since day 1. I purchased a Sovol SV08 about 6 month later and I printed an adapter so I could use the Durozzle on my Sovol. I am not disappointed. This is the only nozzle I use now, regardless of the material I am printing with. The nozzle has remained perfectly flat and wear free. I recommend these nozzles for anyone that just wants to print and not worry about the nozzle anymore. The nozzle has in no way been affected by the several kilos of CF filament that have been extruded. The heat transfer of the PCD nozzle cannot be matched.