My most used 12 gauge load is pretty nearly identical to BSA's: AA hull, W-209 primer, 16.7 gr. Clays, Win. Grey wad, 7/8 ounce shot (9's for skeet, 8's for 16 yard trap, doves, grouse). Thousands of dead skeets will attest to the efficiency of this load!
Since I too mostly use classic doubles anymore (L.C.Smiths in my case) the load is light enough to not cause worrying about cracking tangs and shooting loose while firing thousands of shots.
Also, since chokes are fixed, in order to get more open patterns for skeet and certain hunting applications, I switch to a AA 1 oz. wad (or a clone) and 7/8 oz. shot, with a Ballistics Products X-Stream spreader appliance stuck in. The bigger wad is necessary because of the space the X spreader takes up.
