I'm looking for a comparison between the pro and pax. I'm in the market for an efficient and stealth vape and have narrowed it down to these two after the ascent catastrophe. Any feedback on efficiency, draw resistance, smell, and ability to have a quick session would be appreciated. I know the pax needs to be cleaned a lot but I'm a fairly light user and am wondering if its that bad. Not sure how the pro sets itself apart. Thanks.