I have a yeast calculator question. After putting in my values on the yeast calculator, it tells me I need a 2 liter starter and to use 7.2 oz of DME. Im guessing I boil 2 liters of water with the 7.2oz of DME and after cooling I add my one smack pack of yeast and then let it do its stuff? Is there a cut off point where only one yeast pack will produce so much starter? If you need a 5 liter starter will one yeast pack work with the additional needed DME? Thanks!