Well actually at this point I'm just trying to achieve complete burn of the powder without regard to muzzle pressure or bullet velocity. If I get the same performance as Trail Boss but manage to get everything to burn, I'll be happy even if it's a highly inefficient use of powder. Duplex loads will probably be required to get things to work properly in the end. The great boolit gurus have decreed my venture pointless but not impossible... I'm inclined to agree with the former and feel hopeful about the latter.
Oh just tinkering at this point. If I need speed I have a couple pounds of Lil'Gun, Green Dot for middle stuff, and Trail Boss for light stuff.