Don't know why i never noticed before, but using brewersfreind (http://www.brewersfriend.com/yeast-pitch-rate-and-starter-calculator/
) , there are two stir plate growth calculations. one is Chris White's, and the other is Kai's.
Understand its just a tool and calculator for estimations ( most have no way to accurately measure starting or finishing counts), but there is a significant difference in one step growth models.
Target Profile: 1.060 Lager pitching 460B cells
Kai's Stir Plate: 1.060 lager with fresh vial of yeast with approx. 93b cells added to 3L 1.035 wort estimates 512B cells
C. White Stir Plate: 1.060 lager with fresh vial of yeast with approx. 93b cells added to 3L 1.035 wort estimates 334B cells
Kai's meets target while Chris's under pitches. What model do you use? Anyone try both with different results in finished product?