Hi Everyone,
Well I've had a few days on my new skis, and I owe everyone who helped -- Jim, Michael, Rob, Brendan (and others?) -- a big THANK YOU! I think that these are going to work out really well.
My previous [and now broken] skis were Dynastar Intuitiv 74, 175cm, and K2 Axis X in 174cm. The Heads are flat-mounted with Look Pivot 12 Lifter bindings. I'm a decent skiier, 6'3", 205#.
I skiied the new Heads for 3-days at Bolton Valley and Stowe, VT, in a combination of powder, tracked powder, soft bumps, steeps, trees, and soft groom. It was a pretty epic weekend two weekends ago, actually. The Monday morning, Stowe reported 15-20" new snow

that was all that and more, with waist-deep shots available all-day if you looked in the right places.
The Monster 77's ski very differently from my Intuitiv 74's, and not in ways that I expected. Overall, the Head feels very traditional in comparison to the Dynastar, which feels much more "carvy." It also has more float, initiates turns much much easier, and is a far gentler and less punishing ride in almost all conditions -- including moguls.
FLOAT. Pretty much a function of surface-area, I gather. The IM77 can be skiied either up on top of the powder, or down in it, but with a bias towards riding on top. Yes, I can get away with weighting only one ski and not get toppled over on my noggin. The Intuitiv 74 could also be skiied either way, but with a bias towards sinking. I could only ski the K2 down in the snow, not up on top at all. All-in-all, the IM77 has a little more float than I'd like in deep powder, but the feel is decent, and it's still a fun ride. I guess that I like that the ski catches me when my technique collapses, but it sucks a tiny bit of the euphoria out of deep powder.
GROOM. No comment on hard-pack, I didn't see any in 3 days in Vermont (wow, never thought I'd type those words!) The Head's are the most traditional feeling ski of the bunch, with very little carving feel when I tip 'em over and get my legs extended to the side. They're easy and fast though, and absolutely oblivious to skiier-pack and small bumps: they soak up everything. The Dynastar was a terrific carver (for a guy who doesn't ski carving skis...) The K2 felt more similar to the Dynastar, though not as competent, and with a definite speed-limit.
TURN CHARACTER. For my setup, and my skiing, the Dynastars were hesitant to initiate turns, and responded best to modern technique -- tip 'em over and turn with the natural radius of the sidecut. To tighten the line, use more steering action (not such a modern technique there, I guess.) The Head is completely different. Turn initiation is an absolute DREAM, incredibly easy: transfer weight, tip the unweighted ski, and go. They seem to have a really large natural turn radius though, which freaked me out for my first half-run in the woods. It didn't take long to figure out that the ski really likes to be worked though. Once I figured that out, I was able to make much tighter turns than I can with the Intuitivs, and it took 2 or 3 runs to stop OVER turning them :-)
FORGIVENESS. I'm not sure what "forgiveness" means exactly, but the Heads smooth everything out. Where the Intuitiv is a really jarring ride, the 77 is smooth and forgiving, and soaks up impacts brilliantly.
MOGULS. I far prefer the Heads to the Intuitivs. Both are heavy, kinda wide, and clumsy skis in moguls -- but still competent. The Intuitivs are pretty predictable and easy to ski, but punishing on my body -- lots of impact with my 'flail and bang' mogul style

The Heads soak up the impacts very nicely; they soak up everything so well, in fact, that they are less likely to skid, and tend not to scrub off speed as naturally. I also had trouble with crossing my tips, which was rectified by focusing more on the 'phantom move' to initiate my turns. Once I put that together, these skis were easier to ski in bumps, gentler on my body, and I could transition as quick or quicker than with the Intuitivs. Due to size and weight, they are still a bit tiring though. The K2 was superior to both in bumps.
In conclusion, I'm very happy so far! Plusses and minuses vs. the Intuitiv74:
+ Quicker turner in tight spaces
+ Easier turn initiation everywhere
+ Gentler ride
+ Easier in moguls (for me)
+ More forgiving in powder
+ Much more comfortable stance
- More float in powder
- Not as carvy on the groom
Questions? Feedback?
Doug