I do not like dry incubation or hatching. I believe the commercial guys have it right on this one. What is different is our storage environment, gauges, incubators, and the environment the incubators are operated in. Some incubators are vulnerable to excessive drying, and some are prone to drastic spikes in humidity for example. It may be that we have to make some adjustments to compensate for our individual challenges. If I had a choice, I would not use a dehydrator. I would have to have no other option to even begin considering it. Then I would probably consider a broody hen first. I will concede that some have hatched some eggs in some pretty bizarre circumstances. Thankfully these eggs are tougher than we give them credit for being, and it is not rocket science (LOL).