TripleblacksI would have thought the turn radius was more a function of the shape than the stiffness. Are there additional things to think about here? I would have thought the stiffness controls how it handles on crap snow with a stiffer ski being heavier and having more swing weight. Which is probably what you are implying.
Thanks for the replies. The other option is that is starts snowing more so I don’t have to worry about buying crap condition skis.
Turn radius is the result of the shape of the ski, but the types of turns you can make on a ski depend on more than just the stated radius. E.g., you can bend a fairly soft ski with a long stated radius into tighter turns, but if you have a super stiff ski with a moderate radius, you might not be able to bend it into tighter turns.
In my experience, weight and / or damping affects performance in rough snow more than stiffness. I've been on skis that are super stiff, but pretty light and they don't feel nearly as damp, stable, and confidence inspiring as slightly softer, but significantly heavier skis. Not all stiff skis are heavy, and not all stiff skis are super stable. If you want a ski to feel damp and composed in nasty conditions, you're almost always better off going with a heavier option.
For example, the Nordica Enforcer 110 has a stated radius of 18.5 m for the 185 cm version. This isn't a super tight radius, but I can still carve very tight turns on it (not slalom turns, but still pretty tight). I can also bend the Mindbender 108Ti (22.9 m radius for 186 cm) into pretty much the same, tighter turns. And yet, both skis feel comfortable making bigger turns.
So I wouldn't get too hung up on stated radii, unless a ski has a radius on the extreme end of the spectrum (25 m).