Any concentrate use? Do you stir?
Ime those things can gunk a screen past where iso/brush is effective. Flower gets less gunky w rising temps and as others have observed always best to clean it hot right after caching it.
Came back to say I really like this method and if you have the gear (shovelhead+22mm/female diffuser) it's def worth a try.
Fwiw I'm running a much lower indicated temp (cvs have you stretched your coil?) and even if I sometimes forget a bowl (what, people get distracted

) it stays somewhat usable so you can take your time between draws. It is also faster to produce and less taxing on my lungs. Like, and thank you!
Currently running my Auber at 505.