Glad to see so many others smoke 50/50 mixes. If I find a blend I don't like much I put it into a humidifier jar with a mix of Carter Hall, Prince Albert, Granger and then mix the lot with cigar leaf (usually from a Cuban Churchhill or Torpedo that is way to big to smoke, as in too wide to fit into my mouth comfortably). Leave it for a month after wetting down the humidifier stone in the lid and its a beautiful smoke. Maybe I should call it "Blend '67" (from my birth year), usually I'll smoke it in my Peterson system or my Danish / English / French pipes or even my old Americans and my Cobs.
Only problem I have with my cobs (purchased new) is the plastic stems that feel like they will crack if you clench them.