I knew I was talking to the right person!. Thanks for the quick reply.
Hadn't considered the implications of noise-cancellation. That's a Top Tip; I'll be sure to first check out isolating phones first, this was my preference before I had heard of noise-cancellation anyway.
Had no idea on 'Bose branding' and user opinions. Of course my MMV, but you not only seem to make a good point, you're also easy to take your word for with posts like this one since you're an engineer.
So, Shure. These are now on my TTD list.