Don't get the Sapor. I've gone through two so far and they've both had the same problem. The center post & positive 510 screw like to move up and down, even when screwed in fully. I can push on my center pin and the T block post will move up, and when I push the T-block post back down there's an audible click and it moves the center pin down. I'd go for the vector clone, and I almost never recommend clones. If you like the Vector clone, and something goes wrong with it, it's only a $9 loss, compared to a $30 loss. Plus - if something goes wrong with the clone and you really do like the atty, you can buy the authentic, and not have to worry since you know what you'll be getting + the build quality from VLS. And you can make a mini 18350 box mod out of the authentic vector's box