I found an article on dry incubation by Bill Worrell. It is what I have been saying all along, only he says it much better than I. If I could figure out how to add a link to it I would . But I don't so if you want to read it you will have to go to it. Following his advice your hatch rates should be around 90% average. It is on the Marans of America message board under eggs and hatching, How to's of hatching. Article title Cackles: dry incubation by Bill Worell. All I can say is it is worth all the trouble for the knowledge you can get.