I get the $.99 variety pack of fine stainless steel screens from my LHS that includes two or three per pack of the appropriate size (approx 3/4") to make "shorty" stems at about 30- 60% of full volume.
Most people use the dumb end of a sharpie pen to produce dome shaped screens. I prefer a flat...
The stealth stem is the only one I don't use, better to get a GonG for use with your PNWT and/or a small bubbler. PVHE stems are worth a try if you are bothered by the reduced flow restriction but I personally stick to my stock stems and GonG most of the time.
I had a couple of minor water intrusion incidents while getting used to the PNWT and the sound was a combo of popping and spitting similar to putting a wet pan on a glass cooktop.
Fwiw the carb hole on my carbed gong is so small it doesn't really work all that well for its intended purpose of clearing the tube/bubbler but can work for simple dilution much like a PHVES stem. I use it for concentrates that can be a bit cough inducing at full strength. Otherwise i usually...
I've got a stealth stem in the quiver and really haven't used it much. The stem works well with a cup and straw in super-stealth mode and easily attaches to silicon tubing but otherwise provides no real advantage over other stems. The glass on the stem is drawn to a small diameter point that...
Luke warm water helped me with this buildup and makes for noticeably more humid vapor. My little bubbler now gets a 15-20 second microwave blast prior to use.