so I've skied both this years blends and this years soul riders. I prefer the soul riders, and yes I do ski for nordica but here's a pretty honest comparison.
To me the biggest difference in the skis is in the construction, blends have a cap wall construction and two different materials of wood in the core. Soul Riders have side wall construction and the same type of wood through out the core. In terms of how they ski what this means is the soul riders have a more even flex through out, which I greatly prefer, i think it makes buttering and ollieing and nollieng much better. The blends on the other hand are very very soft in the tip and tail and then are much stiffer after the core changes in the middle of the ski, I didn't like this nearly as much as I didn't feel I was able to butter them or that they had as much pop.
As far a the profile I would say that the soul riders have a little bit more camber as well as a little bit more rocker, with blends having a bit less of both.
Bases the soul riders have a race base which is really good if you're willing to take care of it.
Blends bases are good hold wax way better then afterbangs or any line ski with a similiar base, not quite as fast as a race base but a little bit less low maintenance.
As far as durability I'd say they're about the same both get edge cracks but neither develop into anything more. One pair of soul riders I had delamed on the tip but that was in part due to an impact that bust up the edge on the tip. The blends I had the top sheet separated from the core mid way down the ski. Both of these were after many days of hard riding and no small share of abuse.
Overall both good skis, ski very similiar i prefer the more even flex of the soul riders to the soft tips and tails of the blends. Lemme know if you have any more questions.