@SiRoxx. Brought it up that detail likes to settle out and leave sediment at the bottom when reduced. I would try flushing it out and then adding a strained mix. Otherwise to me it seems like crud in the nozzle. Especially if it does it at a range of pressure. Detail at 1:3 through a .35 should be more than thin enough. Have you ever had to clean the nozzle in the way i had suggested? if not youll probably be surprised how much gunk worms its way out the front of the nozzle.