SWIM received sherlock GVG yesterday and had some success smoking pure spice atop 7 screens. Chore boy copper mesh will be tried soon to avoid liquid DMT escaping. Some has already visibly fallen and settled on the glass where the neck bends before the center bulb.
Anyway, comparing these pictures, the newer sherlock GVG has this extra "dimple" in the bowl area before the part where the glass forms a smaller opening. The sherlock comes with a screen sitting BELOW the dimple, just above the small opening. These two levels are probably .25" apart, and it seems screens could be placed on either level. I'm assuming this is the intended design: to have two operating levels for screen placement to decide if you want more or less heat, i.e. whatever you're vaping further or closer to the heat source.
Sherlock: (note the screens sitting on two different levels above and below the dimple)

Old GVG (no dimple, only one place for screen to set):

So, with the sherlock, which position should the screen be set?? Assume SWIM will be placing a copper mesh above said screen. Do I want the spice closer or further from the ceramic disc?