I own about 40 pipes, all but two are Peterson. As an engineer, I appreciate the science behind the "system" pipes. I even understand most of it. I like the pub pipes, deluxe system, plain old system, and the Sherlock Holmes series'. One thing about the Pete system pipes -- you must keep them clean for them to work correctly. Like Douglas, above, I am not a fan of the rustication; seems like a cover-up to me. Also, I like to find old Petes I can buy low and restore. I am a certified Pete Geek, we even have our own weekly blog, presented online by Mark Irwin. Here is the url to the latest one, in case anyone is interested:
419. Irish Bog Oak Carved Pipes - https://petersonpipenotes.org/419-irish-bog-oak-carved-pipes/
Keep on puffin!