After disappearing off the radar for a couple of weeks, my missing tin of 1792 Flake recently showed itself. I celebrated by partaking of a bowl in an unfiltered pipe, and despite it being a small bowl I had to smoke it in three sessions as the flavour was overwhelming.
I indulged in a bowl of 1792 Flake again this evening, but this time in a Molina Hobby (which I'm gradually modifying to be more "pipe" shaped) with a 9mm filter. It's amazing just how much that flavour is reduced with those filters.
Unfiltered, 1792 is too strongly flavoured for me, yet with a 9mm filter I can barely taste it, at least for the first half bowl - the second half (or is it a "used" filter) has more flavour. Makes me wonder what frequent 9mm filter users generally smoke, and how much flavour they tend to get. They do make pipe smoking idiot proof in as much as potential bite is concerned, but the airflow and flavour are so muffled, it's a very different experience, and I find myself smoking "hungrily"
Personally, I think the 6mm balsa filters are great, and I know you can get larger ones for the 9mm pipes, but I don't have any yet.