My favorite "Boxlock" is the Lefever. Adjustable ball joint hinge, Bolted Square shouldered Doll's Head & sear engagement on the outer periphery of the hammer, rather than down by the axle. It also has much better aesthetics than the typical boxlock.

I Fail to get excited with the Cigar Box frame shape of the A&D design & it has a much poorer sear placement. I also have an early (Ca 1902) J P Sauer & Son with very good sear placement but is a sidelock so not applicable to this discussion.

Miller/TN
I Didn't Say Everything I Said, Yogi Berra