Interesting things. If the draw restriction is something beneficial, maybe you can try just to cover the back panel hole with a tape for testing purposes as then it would get the air from the side slot and this would be much more easy. And that is also a very easy mod then to add the draw restriction, just to unscrew the back panel and insert a piece of metal to restrict the back panel air flow. There is 2 meshes covering that hole at the back, maybe a piece of aluminum drink can sheet between these meshes will look just fine to the outside and this will restrict about as much as restricting the side slot, as I feel it is about 50/50 how much air comes from the side and from the back. Just make sure you remove batteries before opening the back panel, and make sure you have a correct screwdriver PZ1.
One customer explained to me that he had tried minivap flexicones and baskets and he got very good vapor production with only 40 s warm up and power level 2. So probably there is room for improvement in that area to make the Apollo even better.
"
I had the idea of taking the minivap flexicones and baskets and put them on top of the bottom part of the ss chamber, as you can see in the pictures. "
"
And wow! I reduced the heating time to 40 sec, heat to level 2 and use the boost at standard strength only when drawing, it makes huge clouds with no effort from very little material...
The flexicone adds an orange color to the glass tube that looks amazing, the fact that the air is forced to pass through the material that remains blocked in position on top gives a more forced extraction, huge clouds until the end"