I don't know about Route de Vetiver (I've never tried it), but I'd caution against a blind buy of Aoud Lime. I like it well enough, but it's a very, very, er, challenging fragrance. My wife hates it with a passion; the only other thing that awakens remotely this level of disgust from her is SL's Miel de Bois.
Aoud Lime certainly has a family resemblance to Black Aoud, but it is utterly unrosy and much more in-your-face medicinal, especially in its top notes. Definitely a try-before-you-buy fragrance, especially if you intend to wear it around other people!
I should add that I'm not at all anti-blind buy in general, or even in the case of unusual fragrances. Last year I blind bought--among other things--Encre Noire and Yatagan. I was happy I did so in both cases. And I expect to be receiving Eau d'Hermes today, which I also blind bought. At least in the case of Encre Noire and Yatagan, I'd have no problem recommending them as blind buys. But especially at Montale's price point, I just can't say "go for it" in the case of Aoud Lime.