Last night I harvested 800 mL of a very thick WLP833 yeast cake from the bottom of my CAP to re-use in my next beer. According to Mrmalty.com's yeast calculator, I only need about 200 mL, so I have plenty left over.
If you want any, let me know how much and I'll bring it to the meeting tomorrow. If you're wondering why this matters -- go to mrmalty.com and use the yeast calculator for a moderate strength lager. It can be a pain in the ass to build up an appropriate-sized lager starter without needing to pitch 4L of starter wort into your beer.
Lee