Okay if you mean- cut power without turning the dial down to zero?
Absolutely mate, zero contraindication to that. No need to zero it first basically.
However, by your reports of the thinner margin, just be mindful that the dial can move slightly by itself if knocked- it ain't set in stone lol ("The vaporizer in The Stone" haha.)
So it may even be worth using some kind of marker on the dial, visible line, piece of tack, tape etc.
Just in case the dial is accidentally tapped, back into combustion range.
Wasn't necessary ever for me, no one single combustion event on 10 even.
10 was not necessary either, it would turn my herb very dark brown as could be.
But never combust. Still not needing highest temp personally.
But I do expect, and maybe there has even been some talk of it here, there could be a slight difference in the exact heat level supplied by different units. In that, MY 8 is a slightly different temp to Fred Joe's lol. Possibly. I have certainly observed this characteristic in other top, high class Analoge desktop units.
I think in such a case, maybe a VVPN may equalise things. Not sure on that though.
Gosh...I don't know a lot today do I? Two points as guessy as can be!