In order to estimate the effect of relays unstuck measures, I have made some graphs.
The first graph shows how many relays in the network have weight < 20 (in percents, relative to total measured, valid and running count):
https://s8.hostingkartinok.com/uploads/images/2017/06/e905280414853a800031e7...
And I see some drop at June, 15: from ~7.4% to ~6.6%. This corresponds to increase of my relay weight: from ~10 to ~20. Looks like this is the effect of increasing the minimum test file size.
Second graph is the same, but for weight < 100:
https://s8.hostingkartinok.com/uploads/images/2017/06/7768344880b81c80442aaa...
And there no effect can be seen at this scale.
(Don't know if this analysis can help, but, anyway, here it is)
-- Vort