Wow, talk about a six-year-old necrobump!
Superfire even just sent me a PM to ask for reviewing more lights (not doing that).
I see on their website that their version of the F5 now has USB-C charging.
I still have my F5, it now has a Osram NM1 at 4.5 amps and throws a nice saber beam. But in my opinion these type of throwers are surpassed by LEP flashlights now.
Nice review but the square beam of a zoomie really negates every single positive aspect of the light. Zoomies are the most compromise type light. You lose so much and gain so little.
As mentioned, nice review but my thoughts as a BLF user just like everyone else reading this post.
We are Superfire, brand updated from supfire 
Yes, it’s upgraded F5. Our LEP flashlights is in D&R 