I have hand milled mechanisms I fabricated in the 5 guns I use with the exception of the Omer Airbalete.
I have never had a mis-sear or a misfire except the second gun I built with a stock Under See mechanism which had a rivet deform under the power of 4 5/8 bands 30 years ago. ( converted to my first mechanism very fast):@
All my guns are cocked and un-cocked with the safety's on and I have never lost a fish because of it.
The safety on 3 of the guns is a silicon bronze cam which is rotated by a lever and prevents the trigger from un searing when engaged.
Double Trouble has a push button SS bar that locks out the trigger on the bottom shaft.The main top shaft
has it's trigger protected and locked by a 1911 type lever that is released when I wrap my finger around the handle. I have tested all my safetys and sears by hitting the butt of the gun while cocked underwater
with a hammer. My mechanisms are bench tested every 2 years with a 1000 lb pull and have a smooth release.
Thirty years and no issues to date. I have broken wishbones and had a Mean Green band break in the center
and that's about it.All my sears are 17/4 ph stainless.
I personally feel the safetys on my guns have helped make issues and misfires less likely and I'll take any edge I can get. If I ever blow a shot on a big one you have my word I'll post it here.
Sincerely Don