Very perceptive! I'm thrilled you spotted what we did with the Alive and Kicking prompt. We figured everyone who used it would make Snape survive - we wanted to do that, but we also wanted to make the same prompt work for Harry as well as for Snape.
And I'm so very glad to hear that we managed to leave a bit of a question in your mind about the identity of the Snidget. I was afraid it was completely obvious from the first.
Snape gets 150 points and Slytherin wins as he caught the Snitch for good. Hee! What a great turn of phrase! :)
Thank you very much for your lovely detailed feedback!