My buddy runs a barber in Dayton and a warm towel under the strip did the same for him.

Plenty of guys spray fine for years without ever draining a tank, so blaming the dryer for every fisheye feels like a stretch. Odds are the mix or the gun was the real problem and the air line just got lucky.

What ratio of millet to sunflower do you usually see in the cheap mixes that actually work? The bags I checked listed millet first, which seemed like a red flag. Curious if your birds clean up the white millet or leave it behind too.