Morning Bruce,
Is this mixture whole that you're pressing (flake) or is it cut and you're mixing it?
You're in the state with the right name, north to be sure, but have you visited any tobacco farms? Just a thought but perhaps you could pick your own leaf or maybe trade a farmer some leaf for finished pipe tobacco (I doubt that many would have the ability to press as you do). At the quantity you use, they might be willing to give you some choice leaf - especially if you name the mixture after him/her or their farm :).
Pete
@9:20am
2015 (new) Cromwell (pressed and tweaked) in a 1950s Pelican Pipette (made by Barling) sandblast saddle billiard. Iced water, Willie and Lobo.