I got 2 packs of these from HC during the promo last dec. Not intending to disappoint anyone but X7 is not quite a performer. It will be 100% leak when you refill and put the tip on unless you make it air tight at the bottom with a condom cap (included in the package).
Vapor is ok, flavor is.. well.. not as good (which bothers me the most). It just don't produce enough kick in the
vape in my opinion. The performance drops pretty quickly after several refills. Don't use just any 510 drip tip on it, either will leak or mute the taste even more. The included gel black tip will work the best. The LEDs are a nice touch tho.
r3kka, visions are many times better than this, the punch, flavor, vapor and consistency. I got all the sizes but 1.5ml regular @2.6-2.8 or 2.5-2.7 is my fav.
Since you guys are sharing the X7, wouldn't hurt to give it a try.