Well I got my email reply. Sounds good to me.
Dear Kenny:
Yes, we extend your approval period until November 1st.
Yes, please test fire the rifle and report your success.
Prime with 1/3 pan full of GOEX FFFFg, banked well away from the vent hole. No
synthetics, no substitutes, do not cover the hole.
Charge the bore with perhaps 60 grains of GOEX FFFg. No substitutes.
Some gun makers place the vent slightly forward, to prevent fouling on the plug face
from obscuring the vent hole. You can use a ramrod as a depth gauge to find the exact
plug face location. Old guns have this issue, generally resolved by using a
"U" groove under the vent.
If you elect to move the center of the vent, it is an easy fix to install a larger vent
(our THL-W5S) on a new centerline. We sell the vent liner and tap. Your gunsmith must
use a Bridgeport style knee mill (not a drill press), to do this work precisely and
quickly.
Mr. Bradley Emig, Cabin Creek Muzzle Loading Supplies, can do this work, or he can
recommend a skilled craftsman in your area who can relocate a White Lightnin' Vent.
Advise your success,
David S. Ripplinger
ps: since I do not own a consignment gun, defer any attempt to modify the gun until you
approve your purchase. It is a used gun, thus you may test it as you wish.