Pretty sure he said tweeter would be Be.
When it comes to voicing, I've heard many say the tweeter is what's really the most important. Those mids he's using in his upper tier models are all very nice and I wouldn't expect any of them to alter sound quality in a drastic manner from one to the next.
The Accuton Mid may be the most polarizing, however, as it is very highly detailed and unforgiving in the reproduction of a signal. Some people do not like them at all. My experience with a full Accuton Tower was quite the opposite and truly a fantastic experience.
I digress, though. I do not think Jim, with Dennis and Paul K at his side, would ever introduce something that didn't match up in terms of delivering on his Bespoke style.
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That his most expensive offering is a fraction of what other 'Bespoke' offerings cost is a testament, I think, to his values. That said, I would trust in his advice, and if he says it's a good match, I have no doubt it will be as he said!
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