Turkey Load Questions

For years, I have been experimenting various turkey loads. I have killed a number of turkeys using nothing more than ordinary pheasant loads of #5 or #6 lead shot in the 1 1/4 oz range.
Most of my guns are 12 gauge and have 2 3/4" chambers. I have settled on a load that works well for me. It is 1 1/2 oz of #5 lead shot. It patterns well to 40 yards with either my full choke or extra full choke Winchoke tubes. I have killed several turkeys to 38 yards with this load.
When I was a kid, I recall an article in Sports Afield magazine by Tom Roster. It was about long range pass shooting for waterfowl using hand loads consisting of an over powder wad from the bottom of a Winchester AA wad with fiber filler wads and a separate plastic shot wrap with buffer.
My questions:
1. What have you found that works for turkey loads?
2. Have any of you found that shells pattern better/tighter if one uses separate wads with a shot wrap like the old Winchester Mark 5 http://sportsillustrated.cnn.com/vault/article/magazine/MAG1073677/index.htm system as opposed to one piece plastic wads?
Most of my guns are 12 gauge and have 2 3/4" chambers. I have settled on a load that works well for me. It is 1 1/2 oz of #5 lead shot. It patterns well to 40 yards with either my full choke or extra full choke Winchoke tubes. I have killed several turkeys to 38 yards with this load.
When I was a kid, I recall an article in Sports Afield magazine by Tom Roster. It was about long range pass shooting for waterfowl using hand loads consisting of an over powder wad from the bottom of a Winchester AA wad with fiber filler wads and a separate plastic shot wrap with buffer.
My questions:
1. What have you found that works for turkey loads?
2. Have any of you found that shells pattern better/tighter if one uses separate wads with a shot wrap like the old Winchester Mark 5 http://sportsillustrated.cnn.com/vault/article/magazine/MAG1073677/index.htm system as opposed to one piece plastic wads?