Monitoring humidity in egg tub?

[CeeJay]

Would you consider tiny bumps dimples? Maybe I am confused. The eggs are nice and plump. No deflating. Thanks.

Eggs should really stay nice and plum throughout most of the incubation process, mine always start dimpling during the last week of incubation sometimes (rarely) starting 2 weeks before hatching.

And don't try this at home but I actually do not measure humidity anymore, I simply have it down to where I know that the humidity is high enough. I have been using the same incubation method for several years tweaking it around to the point that now I have perfect humidity (not too low and not too high which can create too much condensation which can drip back down on the eggs)