Sidelock + mag-spark
I ran into a problem finding No. 11 caps of any quality on the local store shelves. Due to cost of shipping I'm just not much for ordering power, etc online. Biggest reason I haven't tried Blackhorn 209 is it's not locally available.
Solution? Got a mag-spark so I could shoot 209 primers. Problem solved. I've been shooting 777 209 primers with pyrodex, and powerbelts flawlessly. Accuracy is unaffected, if anything it's enhanced as ignition is like a rifle now. Instant bang as soon as the hammer falls. Everytime.
So for anyone looking for a similar solution other than buying a inline. I highly recommend it.