1. I find no reason whatsoever for a MOD with that kind of power.
2. I have the GX350.
3. Either another Smok, or the RX300.
4. Organic Japanese cotton.
It's nice to know that I have that kind of power if I need it, but I have 3 200+ mods, yet I mostly vape around 70-90 watts, except on the GX350, where it's generally between 100-110. I tried it at 240 watts once, and couldn't stand it. But like others have said, I do get excellent battery life on it.