From a practical standpoint, I'd go with the Scorpion if you are going to be using an optic. The benefit of the longer barrel of the Lightweight is the longer sight radius, which is rendered moot with the optic. I would think the balance would be better as well, and your wife will appreciate the lighter overall weight.
That said, the Lightweight looks really cool, and the steel receiver doesn't bother me at all. I personally prefer the extra heft, and the general thought is that steel will outlast aluminum (though in a rimfire, there is probably no difference). Volquartsen refers to this as their "silhouette style pistol" though I'm not sure what exactly that entails. If it were just for me, I'd probably go for the 7.5" Lightweight.
Last edited by Fishbed77; December 4, 2012 at 08:27 PM.