What happened during the shift ending 2015-06-16 00:56  (Duration 3h 05m)?

It seems unlikely the pool dropped 20% for that one shift, not to mention my Ghps dropped similarly.  Was there a DDOS or something?

On a related note, it would be nice if the shifts page would show my % of the pool for that shift (like on the live stats page) so I could easily confirm that my decrease in Ghps followed the pool's decrease and my % remained relatively constant.  Also, although I am aware this was discussed at length previously, I find the "Pay/Hour at 1 TH/s" a useless value.  I would be much happier with "Blocks found for which this shift was active" along with my % of the pool.  The zeros listed here would be no worse than the zeros listed in the "Pay/Hour" column.  The "still eligible for pay" could then be changed to "#[of blocks already found] + still eligible for blocks in the next x shifts".

Aaron