Correct. It is a common misconception that the The lowest resistance a ProVari will run is 1.2-1.3 ohms. In truth, it will run a coil as low as 0.8 ohms, but it will only run it with the device set to 2.9v.
The ProVari (v2-v2.5) has a 3.5 amp switch. So, using rounded figures here, 0.8 ohms...