We had a black powder specialty shop 30 minutes away, but I drove out there last week and discovered they had all but closed due to lack of business. So I put in a "trial" order (five pound mixed lot, Goex "Express" and Swiss) with Powder, Inc. which cost me a total of $130. Compared to the other ways I waste my money this is nothing, and I've been happy with the service from them so far. Time will tell, but at this point "unavailability" just doesn't sound to me like a valid reason to use BP substitutes.