Not at all. Question is what I win/loose when moving in either direction (stiff+small SC vs soft+large SC). May end up with factory specs as well.
Got another Speedster RS Worldcup 185 for green groomers, so GS part is covered.
I _think_, my best bet would be ~173cm 13m sidecut right for my weight (90kg), but strangely in that stiffness range there are only longer RS (which I already have) or shorter SL (too tight SC).
That's what I'm trying to address. And yes, inclining toward weight-matched stiffness. However, like @SunSurfer said, SC is also a part of equation - larger-SC-board can be set steeper at high speed without overloading, which may compensate for lack of stability due to softness.
Got it. Will go with rounded then.