I bought a new Optima last year and the fingers only breech plug is everything they say. It is a tack driver and with a round count nearing 100, has yet to throw a flier. Clean up is the easiest I have had in 30+ years of BP shooting. Earlier this week, I used teflon tape on the plug threads and tho the jury is still out, I liked the clean up even better (no grease to clean out of the threads) and zero blow back.