A 98 mm width ski is what I would call a mid- fat ski . I have a pair of Volkl Mantras that fit this category .
In no way do these surf as well in deep snow as my Rossignol fully rockered S7's .
The Mantras have a tendency to sink and not surf even though many reviews rated them as the best powder ski in the mid - fat category .
A wider ski like the S7 is simply a better ski in deep snow . If it's only 3- 4 inches or so I use the Mantras . 6 or more the S7's
What about for those 5 inch days? One of each?