Does not work. The SE/30 zebra striped and wouldn't boot. A definitive bust. There's no mention of this in any of the forum searches, so I thought I'd throw it into the public knowledge.

My only guess is that it has something to do with multiple 68882s in the system at once. But the only way to test this theory is to desolder the FPU from the IISI adapter, and I'm not going to do that.