Swap one Angel for another?

[Hiccup]

I've kind of been on a huge Lilo and Stitch kick recently, and I've been doing some thinking in relation to this site. I'm dropping Lady and the Tramp 2's Angel, I know this for a fact, but I was thinking... maybe I should pick up Experiment 624 in her place. I think it'd be interesting to see what I could do with her. But I want you guys' opinions before I do anything. Should I pick up 624 after dropping doggy Angel? And if so, what should I make 624?

[Giselle]

let's see what about a siren?

[Musa]

Yeah, she seems like a Siren to me. Or she could be another familiar? Oh! Or she could be Holli's familiar and be both a siren AND a familiar *shot* XD

[Hiccup]

I like the idea of her being a familiar and a siren. Let's go with that! *scurries off to claim*