Ok so most of my vaping is below 15w and builds range from 1.3Ω - 1.7Ω. it is best to keep it in PWM then??? Now on the occasion that I do drip it is usually around 22w. DC-DC then???
You can leave it in PWM, but based on your build preference the device is probably going to be in DC-DC mode anyways. (The Mini with automatically go to DC-DC when it can regulate with the boost circuit).
So either or ... it probably won't matter much for you.