Thank you, roxy of noodle, but I know have 4.5 vape years experience that I've just tossed down the drain. Believe it or not, I have no clue as to what you're saying.
"tcr"...... temperature controlled resistance/reachability/recreation?
"scale to dial up or down" = change the desired temperature?
Using tc with "SS, gold or silver wire"?
I'm lost and shall remain a kontented blister packin' tootle puffin' mamma. I (AGAIN) wonder if I'm alone.
I'm not sure how well I understand it (yet) either.
Tcr stands for temperature coefficient of resistance (I think).
I may be talking out of my .... here, but as a mathematician, this is what I think is happening:
Kanthal, nickel, titanium, etc, react differently when heated. Temperature control (really, limiting, not control) doesn't work for kanthal because its resistance is very stable when heated. A 1.8 ohm coil stays 1.8 ohm while we vape. However, nickel and other wires will have their resistance go up when they're heated. So a 0.2 ohm nickel coil might go to 0.5 ohm then 0.7 ohm, etc as a person vapes. These tc mods sense that and prevent it from happening by locking in the cold resistance and reducing the power to keep your vape at the same temperature. Otherwise using anything but kanthal would result in significant heating with each puff. Likewise, since kanthal stays at the same resistance, temperature control doesn't work with it (yet).
Different wire types have different resistances per foot, and react differently when heated. The chip is programmed to account for that. SXK used a scale of 1 to 100 and the user can select whatever number works best with the type of wire s/he is using. And the user can further refine from there.
Is it complicated? Ha ha, I think so and I'm a geek, lol! As a geek, do I want to play with it? Of course. Will I like it? I don't know. I might throw it in front of a combine harvesting corn. And go buy a blister pack
Hopefully I have the gist of things and actually put up a reasonable post

If I'm a ding dong someone will hopefully correct me
