i would sugest just using glucose. spray dried malt varies in sugar content between manufatures, so at least with a wort you know the starting gravity (although you could test the gravity of the spray malt by adding it to water), but i dont know of a calculation that would tell you the required gravity to give you a decent amount of carbination in the bottle.
moral of the story: dont post at ten to 4 on a sunday morning..... hangover ahoy!! <_< :ph34r: :blink: