I find mine works best with high VG juice. With 50/50 it was a leaky mess but love the vape.After 18 months I think I track out of habit more than conscious thought.
Yeah I got frustrated about 2 PM and pulled the rba out of my cerebus and stuck in a Baby beast drop in. I've had to change my shirt twice today because of leaking eliquid. The Marvik RBA either works beautifully or dumps the contents of the tank almost all at once. When it works it is fantastic but if the wicking is not exactly right lookout.