Hey everyone! I've decided I love my Davinci Ascent, and I want to buy a hydrotube for it. I see the standard 14mm Pinnacle Hydrotube for around $70 on ebay. But I'm also seeing something called a Vaporblunt 2.0 18mm Glass Hydro Water Tube on ebay for around $99. I'm kinda confused, which one should I go for? I have not purchased the GONG adapter from Davinci yet, but I want to know which hydrotube I should buy before I decide on either the 14mm or the 18mm GONG. The price difference doesn't bother me, I simply want a better device (build quality, performance, etc).