Me: 182lb 6' PSIA-E L2
Current ski: Nordica HotRod Modified (R=16, 74mm) 170cm tuned .5/3
Conditions: groomed PP, some scratch, some snow piles, and some man-made bumps.
Was going to demo this in 171cm but I noticed the ski had a tad of an upturned tail and figured they'd ski short so I tried 176cm. I'm glad I did. I would want at least this much ski.
I did notice that I'm not used to skiing a ski this wide. I definitely have to do things a bit different and it took a few runs to get used to.
On the scratch this ski wasn't near as grippy as my skis. I found I had to create higher body angles to get the edges to hold and they still weren't as grippy as my Nordicas. I had a tough time holding on really hard surfaces.
Part of it might have been me as I'm not used to skis that wide. I'm thinking you have to move more to create edges with wider skis.
It might have been the tune. The IM78s were very sharp but my skis are tuned .5/3 and that's what I'm used to.
One thing about this skis is if they did slid instead of grip, they had a very-well-behaved skid. That helped in the bumps.
On the PP they ripped (but what ski doesn't?). Nice long turns, nice short turns. Surprisingly quick edge to edge for a wider ski once I got used to the width.
On pile of anything the cut through nicely. They are a heck of a lot lighter than my Nordicas. But they seemed easier to handle in crud.
I tried a couple runs through some seed bumps of man-made styrofoam snow. This worked great in these bumps. I'm Nordicas where much harder to control. It might have been that the IM78s had a nice controllable skid. Maybe the difference partially do to the difference in tune. Weight is also a factor, my Nordicas are heavy and harder to swing.
Impression: a very undemanding ski, with a name like "monster" I expected these to be a handful but they were pussycats. Skis short, err on the side of a longer length. A good all-mountain ski suitable for most tasks. The review is subjective as I'm not used to wider skis and some of the impression is do to me.
Conclusion: I don't know that I'd want these to be the only ski in my quiver on the east coast. If I had something else really good on those super-scratchy days I'd strongly consider this ski for powder, crud, bumps, and tree days. This ski and an R=14m slalom ski with a aggressive tune would be a good two-ski east coast quiver.