...i should think that if you spent some time with break-open doubles you would quickly come to the conclusion that the essential design remains superior - even after 100+ years - to other competing actions insofar as doubles are concerned (in terms of barrel regulation, transportation, cleaning, storage, reloading, maintenance, etc.)...

...tho a falling block makes for a superior single shot, and remains so even after 100+ years...

...just my humble opinion...

te