3 of the last 15 pool blocks were under 73G
... or ... 12 of the last 15 pool blocks were over 73G
so yeah there's no magic about the last diff rise of over 10% other than ... of course ... the PPS value per share dropped by that much
[2015-11-02 11:53:33.845+11] BLOCK! ok Diff 111.1% (69179369842/62253982449.8) Pool 50199078540.0 50.2G 80.64%
[2015-11-03 07:29:29.682+11] BLOCK! ok Diff 1271.0% (791262393045/62253982449.8) Pool 26390969143.0 26.4G 42.39%
[2015-11-05 16:03:04.380+11] BLOCK! ok Diff 705.3% (439052935003/62253982449.8) Pool 75658659892.0 75.7G 121.53%
[2015-11-06 04:12:05.094+11] BLOCK! ok Diff 184.6% (114933878778/62253982449.8) Pool 16063204426.0 16.1G 25.80%
[2015-11-07 08:08:51.190+11] BLOCK! ok Diff 128.7% (80106974033/62253982449.8) Pool 41790416467.0 41.8G 67.13%
[2015-11-09 16:23:21.483+11] BLOCK! ok Diff 234.1% (145710888252/62253982449.8) Pool 105146844407.0 105G 168.90%
[2015-11-12 15:14:35.673+11] BLOCK! ok Diff 283.7% (186814320256/65848255179.7) Pool 133541391219.0 134G 202.80%
[2015-11-13 15:00:20.014+11] BLOCK! ok Diff 263.3% (173364227611/65848255179.7) Pool 40621566963.0 40.6G 61.69%
[2015-11-16 23:23:31.447+11] BLOCK! ok Diff 104.8% (69009444705/65848255179.7) Pool 142179280162.0 142G 215.92%
[2015-11-18 10:30:44.855+11] BLOCK! ok Diff 183.3% (120713488076/65848255179.7) Pool 70655572867.0 70.7G 107.30%
[2015-11-18 12:46:02.833+11] BLOCK! ok Diff 262.0% (172524794288/65848255179.7) Pool 4002342701.0 4G 6.08%
[2015-11-19 06:04:12.602+11] BLOCK! ok Diff 200.0% (131688044796/65848255179.7) Pool 33854962315.0 33.9G 51.41%
[2015-11-21 06:15:48.286+11] BLOCK! ok Diff 405.7% (267133153564/65848255179.7) Pool 90991713918.0 91G 138.18%
[2015-11-22 12:43:56.626+11] BLOCK! ok Diff 103.4% (68096783305/65848255179.7) Pool 50091915567.0 50.1G 76.07%
[2015-11-23 00:01:56.671+11] BLOCK! ok Diff 402.7% (265194518236/65848255179.7) Pool 18632958865.0 18.6G 28.30%