Now my reef friends are about 50/50. I'm gonna call it a blasto. Lol. Thanks. From the beginning of my aquarium experience I've used uncured rock from some source. For me the benefit of legal rock out weighs the hitchhiker risk.
A LFS store near me has a giant tub of wet rock. Im pretty at some point it had real LR in it that seeded various rock that seeded the rock that seeded the rock that's in it now.
If I was going to use it first I would quarantine it for a few weeks and observe. Seen a few random aptasia etc stuff on it along with good stuff like thick Coraline, random shrooms, etc.
If you call around I'm sure you can find a whole in the wall somewhere with something similar. Especially somewhere that densely populated.

