For quail, I use a 20ga. CitoriFeatherweightO/U and shoot a Skeet choke with a 2 3/4" 7 1/2's or 8'sin the bottom barrel and a Mod. choke with 3" 7 1/2's in the top barrel. For pheasants I usually have to use steel shot because there are no wild birds in So. IL. and have to resort to released hunts on DNR ground...use 4 shot steel or 6 shot lead (for preserve hunts)...typically a Mod. choke for steel and Imp. choke for lead...depending on conditions.
EDIT:
Edcyclopedia...I love the feel of the 12ga. upland specials...the straight grip combined with the schnabel (sp?) forearm...I have always wanted one!