I really liked the way my Lyman GPR flinter shot but no matter what I did the ignition was not reliable. I tried putting a pick in the vent when I charged it. I tried tapping the stock to get the powder against the vent. Banking the powder in the pan and even drilling out the vent's flash hole bigger.
But the straw that broke the camel's back was when I snuck up on 3 bedded deer in about 4" of new fallen snow, drew a bead on the biggest one and when the hammer dropped the pan ignited but not the charge! They all stood up and looked at me while I grabbed my pan charger and recharged my pan. Then they took off when I shouldered the rifle.