I've got the 901 Killer in stock. This thing is bad to the bone. The cartridges are fully backwards compatible but the atomizers and batteries are not. Had some issues with customers needing parts for their "old" style, so I upgraded them to the new type for free 
Anyways, I digress... This thing is the 901 killer in my opinion because it has the best draw of any electronic cig I've ever tried in my opinion and it smokes up an absolute storm. It's almost the exact same size as the 901/4075 but it's got a longer battery and a shorter atomizer. Not a bad idea, eh? Also, the air holes are built into the brass connectors so you don't have that silly hole on the side.
It's got a 100% electronic switch system very similar to the M401 but probably makes an all around better dripper due to the atomizer being enclosed.
The cutoff is very hard to reach also. It's programmed to cut power only for a second or so after around a seven second inhale... Like I said- very hard to reach and since this things got such an excellent & light draw, this thing smokes like nothing else I've ever tried. If you can't tell I'm absolutely floored with this thing.
Regarding the prices on my site. I'm going to be raising them soon since I'm opening a kiosk and some retail locations, but I'll have giant size coupons for everyone on the forum, good for something like 50 percent off... But for now.. HAPPY VAPIN'
Anyways, I digress... This thing is the 901 killer in my opinion because it has the best draw of any electronic cig I've ever tried in my opinion and it smokes up an absolute storm. It's almost the exact same size as the 901/4075 but it's got a longer battery and a shorter atomizer. Not a bad idea, eh? Also, the air holes are built into the brass connectors so you don't have that silly hole on the side.
It's got a 100% electronic switch system very similar to the M401 but probably makes an all around better dripper due to the atomizer being enclosed.
The cutoff is very hard to reach also. It's programmed to cut power only for a second or so after around a seven second inhale... Like I said- very hard to reach and since this things got such an excellent & light draw, this thing smokes like nothing else I've ever tried. If you can't tell I'm absolutely floored with this thing.
Regarding the prices on my site. I'm going to be raising them soon since I'm opening a kiosk and some retail locations, but I'll have giant size coupons for everyone on the forum, good for something like 50 percent off... But for now.. HAPPY VAPIN'