When you change value of tanks,2-3ohms,do you set them to same voltage on device or tune to your liking.It'll be my 1st adjustable,I seem to like 2.4ohms using an Ego 510 650mah.
This is my last question.
I would suggest using the variable wattage function of the VAMO/Bamboo rather than the variable voltage.
The variable voltage will let you "tune" your vape, but it will have to be redone for each 'mizer (since even the nominal rating from the factory is more of a "target within a range" and a box of 1.7 ohm cartos can vary from 1.5 to 1.9 ohms and still be within "factory specs").
The variable wattage is just as easy to tune, but it works by adjusting the voltage automatically to adapt to the resistance of the 'mizer. As long as the resistance is within the device's tolerances (too low and the device reads it as a short [usually between 1 and 1.2 ohms, depending on the device], too high and it will require more voltage than the electronics can put out [but you shouldn't have any problems at all with anything 3 ohms or less]). This means that not only can you change 'mizers without worrying about the resistance of the new one, but that your vape won't change at all over the course of the life of the 'mizer (they generally increase in resistance with use, though usually only slightly).
I don't have a VAMO/Bamboo, but I do have a SiD, eVic and Provari. The Provari, being variable voltage, I have to constantly fiddle with since the actual output drops slightly as the battery is discharged, and every new 'mizer has a slightly different resistance. The eVic and Sid are both set to control the wattage and I only have to change either of them when I change flavours, as different flavours tend to taste "best" at slightly different temperature.
TLDR: set the wattage and you won't have to worry about it