@snackeyp ,
"..but when Mr. Shaw speaks I tend to listen."
Me too. I cannot think of any single individual in the world of audio from whom I have learned more.
Peter Aczel and Siegfried Linkwitz are the only names that get anywhere close, but that was later.
I found the Harbeth User Group (HUG) a difficult learning ground as many of the concepts and ideas discussed there were in contradiction to what I already knew.
I'm more than happy to admit that I am not the quickest learner. Certainly not when it means having to overturn my existing knowledge.
Learning new things is evidently far easier than having to correct faulty existing knowledge. You only have to look at lifelong voting patterns to see how difficult it can be to give up on long held opinions.
As Alan Shaw says, one of the points behind HUG is to no less than establish a growing body of reasoned audio knowledge that will last the ages.
His aim is to build and expand on the work done by such BBC luminaries as D.E.L. Shorter, Spencer Hughes, and Dudley Harwood.
Long may he continue.
https://www.harbeth.co.uk/usergroup/