I ordered some Chilean Holly a few years ago and I spent a few days experimenting with it, making a tea out of it, without any interesting effects.
You're so right, there's almost no information about this plant, in fact, this post is the most informational piece I've ever found about it, so thank you for that!
I think I'm gonna reach into my herbs cabinet to find it and try to make a resin out of it, who knows, some plants' active compounds can remain viable for years.
I appreciate the info man!
Cheers
RE: Chilean Holly: Mysterious & Powerful Entheogen