i could be the capper or caps... i have a 1900era bench capper that is worn out at the spot for SN/Red Stripe stubby bottles and also the cup is loose so it doesn't fully crimp. i had to finish with my Emily hand capper; it has never let me down yet... try the oxygen caps at williams brewing and see what happens. they are all i use and not too expensive.
"Back when I was in the pen, I used to beat my meat..."
"Damn ye, yellow-bellied sapsuckers; I'm a better man than all of ye milksops put together" - Blackbeard
"...I have really good sex moves; that I learned in China. I'm a sexual tiger; and feed on va-gine-a." - Jon Lajoie