as far as vv, be careful with diy or certain types of prebuilt mods with linear regulators because I have had personal experience that some turned up to full voltage don't handle the dc's as good. You can crank them up to 6+ volts and it's no different than putting the same cart on an ego. I'm not as pronounced as some when it come to electronic capacities but know the switching regulator I use to build my mods cranks these dual cartos like nobody's business.
It has to do with watts, and the output capacity of your unit. You can have two different variable voltage units set to the same voltage , one with linear regulator such as the one Madvapes sells
Variable Voltage Regulator Board Kit Rev 2,,,,
or a switching regulator which Dimension Engineering sells
3A Adjustable step down switching voltage regulator and the difference is night and day . Now, like I said I'm not very well versed in , or make any factual statements that I understand this to the level I should but I can without a doubt tell you that the output and and hit of these two units at the SAME voltage is a completely different experience. The linear regulator at 5 volts reminds me more of a fully charged Ego. The switching regulator is a true five volts and you immediately know the difference.
CraigHB is really good at laying this out in simple terms. But you have to try the different mods to understand what I'm saying. If you're using the dual coil cartomizers with the linear regulator, you owe it to yourself to try them with a true VV unit and you'll understand. I'm sorry I can't explain it better but hope someone that can will chime in . I suspect that I still do not get the full vaping experience because my mods are built with 2x14500's in series, and have always wondered what difference 2x18650's would make. Does what I'm trying to say make any sense ? Two vv mods at the same voltage do not make for the same vape experience
