I have the "newer" 2009 XXL which I believe ski pretty similarly. I always wanted to try your vintage 97mm XXL though, Have any extras? :)
The two replacements that come to mind are Stockli Stormrider Pro's & Moment Belafonte (and possibly Garbones for Mammoth). I have the previous non-rockered generation of the Stockli (105 under foot) and they ski more similar than different to the XXL but they turn a bit tighter with the 27.5 meter radius in the 190's and 23.6 in the 178. The 178's are softer and a lot easier to ski than the 190's and, after getting the 178's, I sold my 180cm Bonafides AND my 176cm MX78's. For snow feel, the Pro's are more "velvety" feeling than the Dynastars which are still really smooth and neither have the rubbery, detached feeling of the MX88's I demoed. Both are fun to carve on groomers for such big skis. Both can transition from smooth to crud/variable at mach stupid without bucking you off. Both reward commitment. My XXL's are the 37 meter radius 109 under foot version and I'm 5'11, 170lbs, 51.
I demoed the Rossi E98's on a firm/icy day and it was one and done. I didn't get along with this ski, at all. It felt big and stiff and didn't hold an edge well. I have some big skis but this one made me feel like I needed to put on 25lbs. Maybe it was the tune.
Regarding the Moment skis...from Blistergear's Line Supernatural 108 review:
"The 13/14 Belafonte is simply a stiffer, straighter ski, and in my book, skis like a better, quicker, Dynastar XXL. I’ve recently put some time on Garrett Altmann’s 2008, unrockered XXLs, and I’d rather ski the 13/14 Belafonte in everything other than maybe pow. For those of you who lament the demise of the XXLs, you might want to demo a Belafonte or find a pair of Moment Garbones.
The prototype Supernatural 108s didn’t feel anything like a XXL; that’s why I’ve called it a cross between a Belafonte and a Sir Francis Bacon. It’s easier, more maneuverable at slow speeds, smoother, more versatile, playful yet substantial."
And a comment from their Belafonte review:
"In my review of the LINE Supernatural 108, I made a comment that I was pretty sure I’d get flamed for: despite the legion of fans of the old, revered, non-rockered 186cm Dynastar XXL, I would take the 187 Belafonte over it in a heartbeat. The XXL is great at fast & straight or fast & big turns. But the 187cm Belafonte is very good at fast and straight, yet I find it to be much quicker and easier to handle in tight spots, and more fun to carve."
This intrigued me enough that I bought a pair of 187 Belafonte's last month.
Other skis you might look into that I have not skied are Line SFB or Opus and Rossi Sickle.
Edited by Utagonian - 5/29/15 at 8:30am