Egg status?
Out of 24 original eggs,
- 9 did not start
- 4 ducklings doing well
- 2 more might be doing well
- 1 is alive but might not make it
- the rest are gone (some were fully formed but seriously entangled and/or rotated, some were not even fully formed)

It's dispiriting but we need to be honest with ourselves - it seems that in these 2 years we haven't yet learnt something that would reliably lead to good practical consequences.
The success rates in our attempts so far have been:
- 20%
- 80%
- 50%
- 25%
... so, all over the place, with the last 3 using the same temp / humidity / cooling, misting / emergency holes and further manual help approach.
If such huge differences are all on account of the natural variation in what cards you are dealt - what batch of eggs you start with - then it's all a game of chance really.