@KeroZen I have tried:
stock mesh
hemp fiber
just a screen cover
I have tried a combination of all of these in every way possible.
I settled on the stock mesh with the screen over it to clean the look up a bit.
I have found that no matter what, there is a "hot" spot whether dry or through water and it is the part of the heater closest to the button on my unit.
It is not a big deal but I just took a massive rip for you and it is darkest near the button.
Turn the stem 180 degrees same "hot" spot.
Simply rotating your stem clockwise or counter clockwise just a bit after a draw works very well for me with no combustion or charring, keeping the flavor alive!
It is surprising to hear people getting 3-4 draws from their stem. I have my screen flat style not basket and it is pushed as far back from the tip half full. I prime for 2 seconds (I don't need the 2 sec prime on fresh batteries), hit for 5 seconds, let go of the button and continue to draw another 5 seconds.
I get great taste nice bluish clouds and between 8-10 draws per chamber consistently with beautiful ABV.
By the way, My first Milaana came with LG HE4 batteries (yellow) and my second Milanna came with LG HG2 (brown) batteries.
They both work amazingly but the more I mess around I notice the HG2 batteries have more power from a fresh charge, but after a few draws they seem to act the same as the HE4.
The SONY VTC-5 battery seems to stay the same through the whole battery, no up when fully charged, then settle a bit as it's used. Very predictable.