Ah, I see what ya mean steved.
Well, in a word, yes, the Provari is rather sensitive. But here's the thing, I feel that that sensitivity, in regards to using a rebuildable, is a very good thing. Think about it like this, would you rather have a mod that is less sensitive to an intermittent short that that could fry yer coil and atomizer, possibly create a hard short, damage the electronics of the device or maybe even damage or explode a battery? Or, would you rather have a device that absolutely lets you know when a coil is not firing correctly and gives an error to save itself?
Most of the "sensitivity" and error issues that many get are primarily due to inconsistent oxidizing and preparation of a stainless steel mesh wick and coil. If you understand what a short actually is and understand what is required to keep a SS wick from shortiing on the coil or the atomizer body(....it's the ground) then one can avoid the seemingly "over-sensitive" errors that show up. Another way to look at it is that they aren't so much errors as a warning about what you did wrong. I use a multimeter to check my coils before I pout em on, not everybody does and the Provari at least gives you some information to diagnose even if it is in the form of an error. A rebuidable atomizer is only as good as the coil and wick that the end-user put in it.
I studied it, found out where the best chance for shorts were on all my rebuildables and eliminated them is my coil-making process (that's a whole 'nother talk show

) and now I have flawless, non-shorting always stable firing coils every time.
That being said, there are some limitations as referenced by Fisty. Using too low a resistance on yer atomizer with too high a voltage will cause the Provari to exceed it's current limit of 3.5amps (on the V2) and let you know about it. This doesn't mean you can't use a low resistance atomizer it just means that you can only take it so high on the voltage. I tend to build coils around the 2-2.5 ohm and this allows me to use the bulk of the voltage range.
There are some people on here that just need to vape at super high wattage upwards to 15watts

.........I don't even understand how a set of longs could even handle that......and I've been vaping for 3 years.
Have fun man.