bleeohio
I have two visions, each came with a different style bp. One has issues, the other doesn't.
Exactly correct -One is the latest plug they built for the Vison and it is an excellent plug with T7 and BH + it is a ton cleaner... The cone plug is the older and more picky plug... talk to Gordy @ Knight and he will get you the correct plug.
When you are talking about opening the flame channel, does the vent liner keep the powder from entering the channel?
It does... the flame channel is the area directly under the primer down to the flash hole...
Here are some pictures that might help you...
