Install Logic X, then Un-install Logic 9

So, downloaded Logic X and MainStage 3 last night after living with Logic 9 for a a while. All good, all great; even sounds better than the last version.

But: it's eventually going to download content to my computer, and currently I'm a bit hard up for space, so I want to get rid of Logic Pro 9.

I've trashed the old Logic.app and MainStage.app's, but I know there's /Library/ folders to clean.

1. What's the Libary Folder location for Logic Pro X? Is it different to the Library Folder location for Logic Pro?

2. Can I safely nuke whatever the library folder is for Logic Pro 9 without killing functionality in Logic Pro X?

Thanks in advance,

-George