Crowley sets

I was wondering what makes Crowley chanters distinct in style, tone, design, etc, from other chanters. There’s a lot of information about Rowsome, Taylor, Coyne pipes, etc, but it is hard to find much information on Crowley chanters.

My interest in this is shamelessly self-indulgent. I play a D chanter made by Michael Hubbert, which is apparently based off an old Crowley chanter that he used to play. I’d appreciate hearing a bit of comparison to other styles from those more knowledgeable.

Some pictures: https://drive.google.com/drive/folders/1xfkkFJEfSkWCWJYrcFF1GVeSeb06QnTI?usp=sharing

There is this discussion back in 2007.https://forums.chiffandfipple.com/t/are-there-any-pictures-of-tadhg-crowley-sets-anywhere/51461/5
Bill Hanemann posts here occassionally, and is a current pipemaker. Michael Loos also still was posting this year.

Good luck,
Bob