Nope, I didn't see the plots, I'll check them later. So looks like I'll have to look for some T10 too
The T30 as I got them to sound, specially when fed with gobs of power (using the B22), have one of the most incredible bass I've experienced, but the top is somewhat rolled off and "soft", which I don't really mind. They're relaxed and fun to my ears. I should recable them, but not being a soldering iron expert, I fear to damage the drivers.