I've done up to V,6 in mine and they were fine (even if my arms and shoulders were complaining a bit!), but I can wonder along a snowy Striding Edge in them just as well. They are a noticeable bit lighter than my other 12 point mountaineering crampons as well (G12s, CT nuptse) so being a lazy git, I default to them any time I'm wearing boots that will take full step-ins.
I don't know about dry tooling in them though. I've only done a bit and used traditional monopoint crampons as at Massons, where I went, there were lots of drilled slots for monos and pick placements.
I've got a pair of snaggletooths and a pair of Stingers.
Snaggletooths for easy mixed/alpine do work well, but wouldn't be ideal for drytooling, especially as a lot of the foot placements are pockets/cracks, or just tiny. And they wouldnt be my choice for pure ice either.
I think if I had to choose one pair, Stingers would inspire more confidence all round.
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