Risers for skis but sinkers for boards?

I don't get it. For years, ski sellers have told me that i need to have 'risers' between ski and binding. Last weeks' thread about Sparks et al. split board bindings linked to comments wherein I read the praises of the new riders' gear that it allows a closer (and therefore firmer) attachment to the board. If this is true, then why do riders want to get down while skiiers are getting high? I don't get it.

Maybe it's just a different mentality. Skiers are high and boarders are grounded. Only kidding skiers!!

It's really just an issue for splitboards in particular. It's not so much an issue for resort boards. More torsion flex with a splitboard than a solid and that means less control in turns. And I think that being closer to the board reduces torsion flex.

I'm not an engineer or mathematician, but that is my take from personal experience.

Maybe it's just a different mentality. Skiers are high and boarders are grounded.

And this is 'sposed to be a bad thing about two-plankers? :

It wasn't that long ago I really enjoyed getting down while getting high! Ah, the bad ol' days.