Pardon me, but any guy who crawls (inclines head over comb to center eye laterally or crawls forward to elevate cheek and by extension eye) darn well is aware that he's adapting to a stock that doesn't fit him and he probably knows the terms cast and drop and what they mean so he DOES NOTICE in his cavalier way. Adjusting cast and drop is simply orthodoxy for the Brits; this untutored Dan'l Boone thing is an American tall tale. There may be some narrow combed guns with the "average" drop at face that allow many to see down the rib and shoot them reasonably well but don't be put off getting help in the way of stock adjustment because someone needs to yarn about his natural shooting ability.
jack