JA - I posit that all Thiel models have benefited from toe-in for a high majority of users, including myself. But, it's a mixed bag of trade-offs and that toe in contributes toward the felt need to reduce high frequency energy. I'm unraveling the puzzle.
I'll note behind the curtain that Jim was smoking before he was a teenager and his high frequency hearing was compromised. Whereas his analytical ear was highly developed in sorting out the sonic integration puzzle in the lower ranges, he was comparatively insensitive to such nuances at the upper end of the sonic spectrum.