The stalking safeties on my Woodward .450/.400 2 3/8" from 1879 very firmly lock the non-rebounding hammers at half cock. The hammers can't be cocked, lowered, or the triggers pulled until the safeties are disengaged. Stalking implies to me that the hammers can easily be foreseen to be exposed to accidental cocking or trigger pulls. The safest thing, then, is to lock those pups down. IMO, the same line of logic would apply only slightly less to a rebounding lock. Would not intercepting sear safeties on a rebounding lock enclosed hammer gun (almost surely also equipped with a trigger block saftey also) be equivalent?