There is an interesting article by Russell Lynch in his blog at Max Muzzleloading. Apparently Western Powders has been trying to get CVA to redesign their breech plugs but they say the ignition problem is due to BH209 not their plugs design. I really do not think CVA is going to like his blog but I feel he is speaking the truth.
The article:
http://www.maxmuzzleloaderblog.com/