Re: charcoal screens.
I tried a screen with the SS hemi bowl during the promotion. I didn't expect much, and I was pleasantly surprised.
One of the tricks when packing with a screen is making sure no shisha touches it. I messed up my first bowl and kept burning the shisha.
On the next bowl, I only packed 10-15g and made sure nothing touched the screen. It was actually good smoke. Very easy to manage heat also, I didn't have to worry about moving the coals, I could easily turn the screen.
But yes, the downside I saw was that the screen wouldn't make an airtight seal with the bowl...