I took the stiffer one out today- V2 I think from the marking. I really enjoyed it. Nice and quiet nose, it held an edge well, and I enjoyed the overall flex.
A couple of constructive notes if it were up to me:
1. Its a pretty heavy board- I might thin the core and make up the stiffness with composites.
2.There is a bit of a step feeling between the effective edge, then when you tilt it further the nose contact engaging. I might tweak this with increasing the effective edge a touch, possibly. The other camber profiles might also address this.
In general I liked how relatively quite it was transitioning from powder to chunder to groom. The general flex was pretty good for me, though I can imagine softer would also be good for a wider range or riders (I'm 217lbs). Torsional stiffness was much higher than my old 185 Undertaker, and I liked that with hardboots in soft stuff and on groom.