I've been trying out CLAM and while keeping the client always open (on OSX) with an expected reward time of 17~22 hours, I got 3 CLAMs since the 21st, so 7 days ago. The thing is, I got the 3 within 12 hours and haven't got any since. I know variation is expected, but how much of it is normal?
I think it's normal, at least normal for you and I. I seem to get stakes in spurts. I'll have very good days, and very bad days, but over the long term it all levels out. Some days I can get 10 stakes, and other days 0. So I would think that having less coins would make it more variable.
Also I can have 2-3 stakes in an hour then go 24 hours with nothing.