I never use TC at all either, but despite this I recommend the Wismec Reuleaux RX Gen 3 with ArcticFox and NFE Toolbox. In power mode it allows you to set the Preheat Type to 'Curve', after which you can edit your own custom power curve (by using NFE Toolbox), and, although custom power curves are nothing new, the fact ArcticFox automatically correctly adjusts them (i.e. each time when you change the wattage on the mod up or down) without any user intervention of any kind is still totally unique and unprecedented AFAIK, but at the same time also IMO this type of preheat is the only type that works well enough to be worth using so TBH any regulated mod that can't support ArcticFox is just a waste because without it you have to manually keep re-adjusting the custom power curve, time after time after time, until finally you give up.