Sorry for the misunderstanding, the issue I pointed out has nothing to do with fasttech whatsoever, I just came across some issues people are having when i was reading about the RX 200 and though TS should be aware of it before buying one.
I honestly have no idea. like I said above, I've read about some issues and just wanted to warn you. You should look in to them some more if you're interested in this device. It's not one that's on my to-buy-list so I haven't looked too deep in to what's going on exactly.
If you're open to suggestions though, since you mentioned you like mucho mAhs; the new Joyetech Evic Vtwo has a build in 5000mAh LIPO. No need to buy a charger or batteries, and a bit easier to pocket as well. But it's new, and no real user reviews just yet. I really like the V1 VT personally though.
Good luck!
I'm absolutely interested in suggestions. But, I'm not interested in anything with an internal battery. I've got a Coolfire already. And while I love it, I'm looking for something with removable batteries, just for longevity sake. The only mod I have with a removable battery is my Kanger Dripbox. But it's more of a one trick pony, and I'm not at all comfortable staking that a Kanger is going to last.
Though I will say, if it weren't crunch time, I'd be looking at that mod. It looks quite enticing. I might pick one up, if what's available isn't completely decimated after August.