Hi I have made a few box mod that are v/v but I want to make a better one. I have been reading about the dna2o and nivel chip. If I went by price I would think the nivel chip must be better right? cus it cost more so it must be better rite?? but I cant go by the price cus cost does not always mean you get what you pay for. To me it look like on paper the dna20 looks better but has any one done a side by side review???