Don't get carried away with getting too narrow too fast. My intuition is that something between 100 and 110 will ski relatively "narrow". I have no hard data to back this up, but my subjective sense is that a rockered or reverse cambered ski (with sidecut) is generally easier to take edge to edge than a comparable width conventional ski. After noodling on this a bit, I'm sort of thinking this is because you do not have to decamber the ski as it rolls... Or, I could be simply hallucinating.
FWIW, I've got somewhere north of 70 days of rockered ski use - with an assortment of models - under my belt the past few years... I have no experience (yet) with hybrid models. So I can offer no useful info there.
This is an interesting new space. Whatever you get, I'm pretty sure a bunch of us would appreciate a review - pro or con - after some use.
I don't recall which model, but Dookey has a bunch of time on Lib magnetraction skis. And I'm pretty sure he's been keeping his ear to the ground wrt to their skis in general.
Oh yeah, Moment may have something interesting - check out their stuff. And I've heard some positive comments about the Salomon Shoguns which will be more in the space you are talking about as well... Etc.