Hey peeps,
I've just received my 49th payment from BCS and thought I'd share the chart I use to keep track of earnings:
(Disclosure: clicking the chart will take you to BCS using my referral link

)
http://i92.photobucket.com/albums/l21/mattduffin/chart_zps8543393f.pngIt all looks pretty healthy. Payouts only get new labels if the amount changed from last time. So you can see that there are 11, 13, 9, etc. days with the same amount. The percentage payback line jumps occasionally because BCS sometimes pays out twice in the same day and then not at all on other days.
47% payback after 49 days of a 365 day contract seems pretty good to me, although it won't be linear due to payout amounts decreasing.
You can verify this at
https://blockchain.info/address/17a5jMgVGXVpuGfvVbDFUppL4jwt5WpRXt?offset=0&filter=2 (ignore the payments from Bit-investors, that was me being taken in by silvercane's scam!).