Remember, combustion creates a visible flame (this is not the kind of combustion one should ever get from a vape) or a sustained cherry (known as smouldering, this is what we are used to when cannabis combusts).
Technically, when you "char" the top of a load, that is also combustion. It's very low energy combustion, but combustion all the same. Similiar in vein to smoldering, but the idea that a cherry needs to form IMO is false. It's a binary state, a cherry is formed by more energy and heat through combustion, if that makes sense. I may be somewhat wrong in my terminology.
Like, just for example, I take my flame and light a bowl, that is higher energy combustion. From that flame now being in the bowl, I'm having "lower" energy combustion as that spreads but both I would consider a higher energy combustion than smoldering. Smoldering, is an even lower form of combustion (think leaves on a fire), and charring, an even lower form.
I may have screwed up some of the terminology, my main points are
A) Combustion does not need a visible flame
B) A sustained cherry is not really the same as smoldering. Actually I think one of the points of smoldering was flameless combustion, but I'm not totally sure on that.
C) Charring a load is technically combustion, a very low end form of it. Once you reach combustion, it is reached. Something can be combusted via high energy combustion, IE a flame, and you can combust the whole bowl in one hit or just enough heat is brought into it that the top of the load is charred. But still, in both cases, combustion was reached. Combustion is combustion, but there are different forms of it.
There was another thread in here that had lots of good information about combustion hidden between a lot of comically uninformed posts, I'd recommend perusing through it if anyone is interested.
On some of the other points:
- I immediately know when my load is HIGH ENERGY COMBUSTED! You can just taste it. You can also taste when it's starting to get charred IMO. Maybe not everyone, but I certainly can with my Lotus, Vapman, EVO, etc.
- I vape at high temps all the time when I want my body to be REAL relaxed (particularly, when I have a tight/sore back) and I find high temps do that for me. I am not particularly worried about anything in my vapor at a high temp. Still not even worried about my lungs when I char a bit.