Also, if you want to post a negative review on FT, you have to do so from your order history, click on the "details, options and support" link and then clink on "write a review" next to the item. They let anyone write a positive review, but only verified buyers can write negative reviews and the way they know you bought the product is through the link inside your order history.
Actually that's not correct. They review every review that gets posted. Even with the order history and doing it exactly as you stated, they will not approve the negative review I wrote, I can take a screenshot if you like.
Also, for $28 - $30 I can order a Ehpro KFL+ from a seller off eBay and have it to my door in a week, give or take a couple days. I've personally seen the difference between Fasttech and Ehpro KFL and Ehpro is probably the closest to authentic I ever seen.
And the link the OP provided... don't expect 80% of your 510 drip tips to fit either.
The one time I had one issue with a Ehpro from a seller, the seller reimburse me some money and provided the parts. Fasttech gave me the "we're sorry you are not happy with the quality and we'll try to control quality better in the future".... and it went in the garbage.
If I want cheap and can wait a month for it to finally show up, then Fasttech is a great way to go. I use it for my expected replaceable items... like tanks. But if I am in the market for clone, Ehpro is top of my list, Hcigar is second. Infinite and SGS is a possibility.
Some of Fasttech's items are truly like a box of chocolates.. you never know what you're going get, and it may end up in the garbage. And I learned not to trust their reviews since I now know first hand they are screening which ones get posted and which ones don't.