Well i think i found my sweet spot 4.5 volts seems pretty nice to me .But i have a random question i got the 510 cap on it and their is a small screw inside where your cartomizer screws down and i was curious if you should tighten it down or leave it loose as mine was a little loose and i screwed it down a tight.
Just wanting to make sure as i dont want to hurt this thing as i am Loving this thing ,Im never was much on ry4 from some vendors i got but the buzz is making it taste pretty damn sweet right now