Yes, your wattage is what "starts" your wire heating. Without a starting wattage, there is no way for TC to get going and kind of "kick in" to TC mode, as your wire reaches your temperature setting and etc. Otherwise, you would be starting with a wattage of 0, meaning you'd never actually get to
vape. Most people keep their ramp up wattage fairly similar to what they would use in wattage mode. I like SS for this reason, I can check out a build in wattage mode before deciding where to "go" as far as temperature mode and etc.
But it's a common misconception about TC, that it will "magically" float you to your set temperature... Some wattage needs to be applied to "start" the wire heating.
Anna