[Typical NS10 insult]
Eh, they're probably still going to sound like NS10's...
[/Typical NS10 insult]
Try it. I can't remember if they reoriented anything for the "studio" models.
That said, I hated them to death from day one. They did make a decent "little crappy set" but don't expect them to actually sound "nice" or anything... Putting them on their sides shouldn't make enough of a difference in the case of such a speaker considering the expectations from it.
Geez, I really sound harsh on those things, don't I... I really don't mean to.
[EDIT]
If it makes a difference (it will), the NS10's were one of VERY few models of NF's that I preferred the tweeters to the "extended field" outside, rather than the "more accurate" inside. Some of that was because the tweeters reminded me of my ex-fiance' screaming in my ear, but the imaging, for some odd reason, actually seemed more "natural" with the tweets out.