I usually run an IGO-s RDA, but I just put on a Kanger Mini Protank 2 sporting a rebuilt, regular (not micro coil), 32 gauge wire coil that comes in at 2.1 Ohm. The MPT2 vapes fine with no burning at all. My THEORY is that it all depends on the wicking. Mine is currently wicking with Japanese pad cotton similar to Koh Gen Do, lightly packed in the coil with a single, 1/2 pad-depth strip of cotton on top as a "flavor" wick (the diameter of this cotton seems to contract after it is wet). It does seem to vape a bit cooler on a standard 650 mAh standard eVod battery that is supposed to be "regulated" at 3.7v. The juice currently in my tank is "A Quiet Morning" from Alice in Vapeland - which I'm guessing is a higher PG fluid.
Then again, maybe I just can't taste the burning.

I can say for certain that I've had no dry hits. A bit of gurgling toward the very end of a tank, but that is not unusual and not dependent on the battery.
I think I have a few unused, stock 2.2 and 2.5 ohm coils in my stash box. If I do, I'll give one of them a shot - 2.2 Ohm if I have one - perhaps this evening. Given other peoples' reported experiences, I'm GUESSING that I might have to take out the flavor wicks and replace them with a small amount of cotton to make it wick well enough. I'm guessing that just removing the silica flavor wicks will result in some flooding with my relatively thin juice.