Nice looking ad. Hopefully, the R4 will live up to the hype. If it does, I'll be a happy camper 
OK. I don't find any difference with the R3 with these R4. They still leak from the top and bottom when you put it down horizontally. I would say, just live with it for its performance and go with the ptb mod to minimize the leakage..lol
edit: unless I got the R3.5 and not R4 as promised???
Do u have a filler ring of material between the ceramic cup and wall of the cartomizer?
heres some exclusive R4 pics
the ptb does work best when the wicks are cut, but unfortunately the wicks are too messy when cut,
for me I'm just going to use them out of the box, and get the 30pack deals for about $30