Plenty of modern devices are plenty accurate, and certainly not erratic (erratic implies a huge discrepancy). Tests of for example joyetech/Wismec mods show them to be very accurate in at least vw mode (as the Provaris only have vw mode tc accuracy doesn't matter). Devices with DNA boards are very accurate, as are devices with Yihi boards. Just to mention some (and with joyetech, most).I wouldnt call the "erratic output of other devices a lie"
I kave a Kanger Kbox mini that is definitely not accurate at lower wattage settings. I use it only as a stand for rebuilding. Thats all its good for.
I also have an Aspire pegasus that I really want to like, but anytime you change atomizers it wants to fire at an absurd 6.5v- 7V for several seconds before settling in on the set wattage. Thats the supposed way it checks to see if it needs to be in temp control. I think its defective as its supposed to only do it for a second or two but it does it for much longer. I contacted Aspire, but the return policy is a joke and somewhat expensive for returning a defective product. I didnt bother trying with the Kanger as that was a cheap POS anyway.
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