I agree, having the full SPIN would be nice. BUT...
I've been in James' shoes and done full spins on large tower speakers, so allow me to play devil's advocate.
Doing this stuff is a huge
PITA. As he said in the video Gene posted, James does provide SPIN data for smaller, more manageable speakers. But large, heavy ones are a different topic. Namely, towers with the reference axis point that is off-center.
Think about it: in order to have SPIN data in this case you have to essentially balance a floorstanding speaker on its side, many feet in the air, on the tweeter location. The majority of the weight is on the other end of the speaker. Which means it'll want to topple over. Unless you build a rig that allows you have the speaker on its side, in the air, with the point of origin/spinning at the tweeter axis. I did that. I hated it. I made it work. But I hated it. And, my god, is it scary. Not to mention hard to get some of these 70/80 lb speakers carried up a 6 or 8 foot ladder and then carefully tipped on their side. I actually fell the f*ck off a ladder when I was testing the Revel F226Be.
IOW: It's incredibly tough. I know from personal experience.
Not to pick on you @buckchester
but I wish people had a true understanding of what it takes to get SPIN data the "manual" way. I think it would give them a legitimate appreciation for the work that is
provided and might relent on requesting additional things that just aren't feasible. This is a general statement and, again, not picking on @buckchester
. Others make this same inquiry to James now and again. I hope they see this and understand the work he's already doing is quite a lot.