First concentrate from the square last night. Tried dabs between a sandwich of 2 concentrate pads on the highest temp (480). Several huge and smooth draws - completely finished it off, none was wasted - and the sandwich appears to be the way to go as the SS screen didn't really get gunked up at all. I wasn't expecting much on the concentrate front - but honestly I'm impressed and this thing legitimately handles them well! Another win for the Haze Square!