I guess I use my adjustable stem screens to stop myself from sucking in all of the snacks, with the open part towards the heater, leaning my nano up slightly with the stem down. Am I doing this wrong or what?
Based on my research, it's personal preference
Again, I will take this opportunity to again echo what others have recently said. If you're reasonable, the upkeep and maintenance on these stems is stupid easy. I take my ice stem apart, but drop it into some iso for 30-45m and it's ready to roll. Just need a quick rinse and dry...
Stem in a ziplock sammie bag with iso, and the balls and screen in a small glass dish with iso.