The key cocking difference is that the A&D uses the two cocking dogs to fit recesses in the forend iron, thereby forming a lever, which then cocks the locks upon the fall of the barrels. The FP has convergent cocking arms in the action body, activated by a stud on the lump.
Dig, I've been studying the action of my Greener FP. It looks to me as if a lot of force is used to cock the locks on a very small surface area with the small stud. The stud must be be small enough to fit within the dimension of the barrel lump, but be wide enough to contact both cocking arms. In your experience, is this an area of common failure? On the other hand, my gun was made in 1891 and still works. Thanks.
