yeah bird hunter been there done that ,go grouse hunting and all you see is deer , my idea for this came from looking at a lot of the old vintage sets that used to be made most of them from higher end makers , so the stock issue as you relate must have been quite a paradox trying to balance the sighting planes i believe the rifle stock much like a trap stock has a higher comb .the weight problem of course would be that the slug barrels would weigh a lot more than the smooth bores i have a cape gun 12x.308 savage 2400 made by valmet back in the day there is quite a story behind this one ,as i am also alaskan it served me well ,especially as the p/o had honed the choke out so as to fire slugs as well ,i have a savage 410'er insert so it is pretty versatile
thanks again smitty