Mr. Malty suggests that I need 1 vial in a 3.5L starter on a stirplate to get the right amount of yeast. I only have a 2L starter and stirplate. If I do a 2L starter, chill and decant and add another 2L of wort and let that run...will it give me close to the same amount of least? somewhere along the line I recall someone saying that the starter needs more volume or it won't matter?