I think he does it all, even very high wattage because he can rip big and quick!
Autofire on ArcticFox is up to 60 seconds, and can be engaged tapping twice just like Tubo (which has even more options to engage, with a wide run time range, and is called cruise). Meanwhile surmyevic is autofire that can only be engaged via long press up to 25sec or it is the only one with an infinity option (which is the riskiest of all!)
I use surmyevic on my RXG3D with my Canary Z autofire 25s, which I typically stop earlier more like 8-20sec. It is much easier for use through water, usually at 45 watts (and up to 65w for dabs). Tap it on, hit (and spin it if you like), tap it off, then clear. No real risk in my usage, all reward
Still need to try TCR some day, love it with Tubo and my Imp on ArcticFox (I think I like both better than surmyevic actually) but I've had my SplinterV2 on RXdna250 for a pretty tame temp control experience that is still pretty nice. Kinda cool with an RBT vape, but yeah wattage mode really unleashes the beast properly...