as said above- look to the reloading forum on the Parker board - some of us have had additional loads tested with more available powders-
my tens range from 9 to 10 1/2 pounds and handle fine- look at the 6 frame Parker in the new issues of DGJ- the smaller of the two big boys in our shooting group - 10ga day at the marsh is always fun.
an ounce and a quarter of bismuth or tungsten will deliver a solid killing shot on a duck at a distance past my shooting confidence, and while our clays club limits loads to an ounce and an eight, when you see a long distance target just disappear you get an appreciation for the pattern the extra full chokes can deliver
