I am mostly interested in performance between a well-shaken by hand starter and starter shaken on an orbital shaker.
The orbital shaker used at White Labs makes the 3520 look like a toy. I believe that I saw six 5L flasks on the shaker at the same time.
I plan to use my 2L and 5L media bottles on the shaker. A Fernbach flask (a.k.a. a squat baffled Erlenmeyer flask) can lead to excessive foaming. I personally do not fear the foam, but over foaming in a conical flask can be a problem.
I need to purchase a new cover glass for my hemocytometer. I have been putting the purchase off because a new cover glass for a Reichert Bright-Line hemocytometer costs more than a new Chinese hemocytometer.