SpritePacker Best Practice?

Hey Folks,

I recently discovered the most useful tool that is SpritePacker. After struggling trying to make my own sprites sheets and aligning the pivot points, I found it much easier for my sprite animations to be separate files and let sprite packer worry about that stuff. I'm currently sitting at like 1500+ sprites in a single "sprite packer" which is at about 3 pages now. This # will grow a lot more once I start working on the real artwork.

My question is: Can I just have all my sprites use the same sprite pack tag or is there some limit to how many sprites can be packed under a single tag? I understand that having more than 1 page is the equivalent of having more individual sprite sheets and more draw calls. Should I bother separating the sprites in some kind of category system?