Having read more than one post indicating a ignition problem using the new plug and BH209, i decided to proceed with a cure.
Beins' how i have never experienced a misfire/hangfire in my Omega or Triumph whilst using BH209, i have come to the belief that a 'powder pocket' like what is found in the TC breech plugs provides 100% reliability. A way to make a powder pocket in a QRBP is to use a vent liner, and drill a concavity for it to fit into. The diameter of the pocket in this case is 5/16", and the rim of the vent liner was reduced from 3/8" to fit.
The QRBP costs $25 shipped, and a vent liner costs about $5. This sure is a lot more money compared to making a breech plug with a powder pocket, for the pre-2010 CVA rifles, which can be readily done using a grade 8 bolt that costs $1.60.
Currently i am involved in making a QRBP from a grade 8 bolt, but it is quite labor intensive, compared to making a breech plug for the pre 2010 CVA rifles. Also, i don't think the results will be as 'clean'.