By "standard" 901's I am referring to the ones that meter out to 2.4-2.6ohm. I am technically running at 3.7volts. I use the AW P18650 2600's. That particular battery has a discharge rate that stays above 3.8 for more than half it's cycle. So again, it is technically 3.8 to 4.2. I can tell when they get around 3.8 and swap them out with a fresh charge.
I do use the 2.0ohm 901's if I'm using my AW P18500's. Their discharge rate falls off more sharply than the 2600 so I can live with the 2.0 easier. Anything below 2.0 is a no go for me.
I am not fond of a hot vape at all. My main criteria for a satisfactory vape is dependent on flavor and nic hit alone. To be honest, if only the hotter vape was available, I'd likely be back on smokeless tobacco. I had no issues even after 41 years of smoking to give it up in favor of vaping. The smokeless (copenhagen) was a different animal entirely. That was a struggle.
It was the massive nic hit and flavor you get from the smokeless that was hard to replace. So I use odd combinations to get copious amounts of vapor loaded with high nic content with a decent taste. It's worked for me since February 2011.
I do find it interesting how many different ways different vapers get their fix. While I am on the cool end of the spectrum, many like dspin want in his words a "flame thrower" effect. I guess as long as it keeps us off the tobacco, whatever works, right?
my UFS is stricly used for 510,s 
