I would have to agree with you about the DNA20. I'm a ProVari owner who purchased a ManCaveMod DNA20 earlier this year, and it really does perform very well. The only thing about the DNA20 that doesn't measure up to the ProVari is the efficiency of the circuit, and I get about 25% more battery life out of the ProVari using the same AW 2000mAh batteries. I'll be getting the Panasonic NCR18650PD batteries for the MCM soon so I can get equivalent life span between charges on both devices.
All in all, I'm very impressed with the DNA20 and the ProVari and they both work equally well at what they do.
I can see that, but I'm surprised that its that big of a difference.
What ohm coil and wattage setting are using?