The plot thickens. So you're trying to find a balance between too much liquid for the power (not enough liquid vaporized so the coil gets flooded with excess liquid which gets heated but not enough to vaporize, which makes the gurgle sound and goes thru the mouthpiece as tiny hot liquid droplets) and too little liquid for the power (all liquid gets vaporized so the residue on the coil (or the wick?) starts to burn)? Or something like that?
All very good - Just wanted to clarify/expound a bit.
when there is too little liquid in the wick that feeds the coil, the wicking material can sometimes burn - causing the "dry hit" phenomenon. That or its burning up crust off the coil which is probably just as gross.
The goal is to find that happy place between not enough liquid on the coil and too much liquid on the coil, with that there are a lot of variables at play - i think closed systems try to solve those for you.
Airflow: too much airflow in a tank system (the juice is stored in a tank and usually wicked in through the bottom of the tank into a coil through negative pressure as you suck) will cause your coil to dry out, too little airflow (not sucking hard enough or your airflow setting is opened too much based on how much you are pulling) can cause you to flood.
The width of the gap between too much liquid and too little liquid is device dependent (device in this context meaning mostly the atomizer: tank, clearo, carto, etc) - based on the amount of airflow set vs required to wick (liquid viscosity comes in to play here too), and coil temperature (which is a function of the mass of the wire, the resistance of the wire, and the amount of power being applied to the wire).
This .... can get pretty technical lol