WOOT! Something different! This is a new twist on genderbending, and trans. It's different! Making Snape the genderbender - yowza! Brilliant. And what a novel solution to the Ginny vs Snape problem! Especially the nice point of blaming it on attributing it to that all-too-poorly-developed plot device, the Peverill Ring. HAHAhahahaaha. Now *that's* a fine use of canon!
And did I mention? It's different! What a fun read. So creative! It opens up canon in so many interesting ways, while remaining within it. Bravo!