I dont want you to nag him or exhaust the boundaries of your relationship with him, but Im a little curious about these. I've seen him mention the same information a few times when asked, but it seems somewhat vague or "from memory".
On the other hand, I can only presume that he has been asked these questions REPEATEDLY ever since those albums came out, and things would have detailed recall sheets and documentation for everything. A lot of guys like Dave are able to give very accurate recollections purely because they're asked the same questions so often.
I'm just wondering if the VH4 was involved much on Aenima, or if that was only Lateralus, and whether he specifically remembers the speakers being G12M's. G12M's do get mentioned quite a lot with Adam's Marshall cabs, but so do V30's (and occasionally blackbacks). IIRC Sylvia Massey said her era of Tool was using Marshalls with T75's. I can only imagine he has all kinds of cabs and speakers in his own collection.
For the Aenima tone, I've always found V30's to sound closest, but there could well be a fair bit of overlap sonically given all the other variables at play. To my ear, Lateralus sounds like its using the VH4 a lot more heavily.