George,
The "classic" straight stock works fine for a lot of people, especially men with typical square shoulders and relatively short necks.
It is NOT the ideal shape for reduced felt-recoil for those human who have more sloping shoulders and/or longer necks. This includes far more women than men, but not all men are shaped the "average" way. Which is probably why Roy Weatherby (and quite a few other men) find the Monte Carlo type stock tends to reduce felt recoil.
