I've just received the VENTY XL rocket stem from their Canadian store. Just discovered that the Glass stem is the same diameter as a tinymight , so basically I can use any tinymight stem with the venty.
You can use any existing glass injector bowl by dropping the screwball bowl (minus screen) in and then the heater on top as usual. You then just adjust the heat upwards to your taste.
I'm currently doing this using an elevator bowl , running at 285c after a bit of experimentation.
Not my tip...