I'll explain the thing with a ss sleeve and you can ask me anything, ofc. I will answer your questions. we're having a technical conversation like we did before.
There are 2 ways to using the Glow (Kanthal coils, around 45 watts, wattage mode, air flow 100% opened) :
1) Without preheating - slow/medium draw - because the system is not hot enough, fast/super fast draw will not yield vapor. after few second of the draw, raise your velocity of the draw
2) With 4-10 seconds of preheating - fast/super fast draw, extract the bowl faster. there's more heat in the system - avoiding combustion by fast/super fast draw.
IMHO with the second option there is a need for ss sleeve maybe.
P.S
you keep using the term PID. what did u tune inside of it? what do you know about PID? why did you choose TCR 190? just saying PID all the time is nice, but can you explain what exactly in this PID is helping? or it's the default PID of the mod? how did you choose TCR 190, randomly?
what makes you using the word PID all the time? how you know the coils temp are accurate? you checked it, with equipment?
Because I have a feeling you chose TCR 190 randomly..
what makes your PID tuned? you inserted some kind of a thermometer inside the coils, while you're taking a draw?
I like the fact that you're using the term PID, but explain more deeply what makes yours calibrated etc'. don't just say PID without further explaining.
if you configured something, it's not just configured and that's it. you need to test the coils temp. I am not sure you have done that. "try and fail" you need to check what is really going on while you taking the draw by the coils temp.