Got Smooth 8 going on Joye 510 blank carto right now at 3.7V.
Sounds like these are comparable to the ones from the other vendors and word on the street is there are only two manufacturer's of these carts for now. Wanted to be sure and I think we'll go ahead and order some blanks from the only place who seems to have them in stock. I do like them better than 808's and recommend (as you do) that you fill them once,
vape a few hits, and then fill em again. They seem to hold 3/4 condom first time and around 1/3 again after a few hits and spin.
Very nice review and I'm off to order. Please keep us informed if you wish!
Thank You for the reply......
Supplemental; these cartos hit very well if you remove the cap and replace with 510 whistle tip. Something about the draw, and of course the comfort of whistle. First ones I got were glued caps but no problem removing and preparing for tips. The vendor you mentioned requested the soft caps and makes it much easier to begin. Thanks!