@XMAXVAPORIZER Love the new color!
So this is what it looks like under the oven screen. My screen was very loose, so I wedged the tip of a pin in one of the holes to get some grip and lift it up a bit, then maneuvered it out with tweezers. Turns out there was quite a lot of very fine ABV that made it through the stock screen, even though I've been using it with an extra screen in the oven right from the start:
The extra screen is domed very slightly to give around 1.5mm space between the 2 screens:
Cleaned it out by brushing & by pulling air through the oven, all while holding it upside down so nothing falls down further into the oven. There's another screen below the main one, and the heater looks like some kind of narrow tube arrangement (explaining the slightly uneven extraction). Can't really see more without further disassembly, but at least it's nice and clean again:
Warning: Don't do this unless you really have to! My screen went back in nicely, but there's a very real possibility you might damage the little tabs around the screen or bend the screen so it doesn't stay in anymore (although you could replace it with a normal screen if you have to). Next time I pull the screen I'll check whether the vape is less noisy without it, whether it draws more freely, and whether you can see any coil glow when it heats up (which might give hints about the coil design).
Perhaps this could also help those who found that performance got worse after long term use.