My using a spinner guide for new to VV people.
Set the spinner at the lowest voltage.
Screw on your device
Take a vape
If you like the quality of the vape stop here
if not begin loop
spin up the voltage a little bit
take a vape
if you like the quality of the vape exit the loop
if you get an unpleasant taste spin the voltage down one notch and exit loop
If not go to begin loop
Just keep twisting it up and vaping until the unpleasant taste then back down a bit
Most people like to vape at the highest voltage they can before the taste goes off
No mucking with numbers
This is certainly valid advice. If you just want to get your vape on, this is a great way to get oriented.
Personally, since I am an IT engineer/architect type; I get the powerful yearning to understand why something works the way it does. Nonetheless, you don't have to be an electrician to get a pleasant vape on a good Variable voltage device.
I find that to be the cool thing about all of this. You can have just the amount of knowledge that you want to have and with very little you can reduce harm to yourself and your environment.
How cool it that?