I had dual ss mesh wicks set up in my AGA-T2 for about a week.  It worked pretty darn good, until the other day when I first noticed the button on my brass Sigelei 19 got SUPER HOT really fast.  I panicked and quickly took out the battery, which was NOT hot.  It seemed fine.  
Me, being a dumb***, put it back in and continued to vape on it, and the hot button didn't happen again.  What DID happen a few minutes later was a short, sharp shock where my finger touched both the button and the bottom ring around it.  A short, I thought.  Didn't hurt that bad, and the thing was still working just fine, pumping out vapor and sucking up 
juice.
BUT!  in a rare flash of common sense, I checked the resistance of the whole device again.  .2 Ohm.  Yeah.  I don't know why that didn't register as dangerous territory when I first set it up.  I've been using various 18650s and an EFest 18500 batteries and wasn't noticing any rapid power depletion.  I took the second wick out anyway.  The added vapor and flavor were great, but the added throat hit was unpleasant, especially since I never did drill a second air hole in the top cap.
So.....tread carefully my friend.  Just some advice from an idiot.  You'll notice in these photos that my coils are an unholy mess, but I swear to you I had no hot spots or hot legs.  Scout's honor!
		
		
	
	
here's a video I made too: