That's the problem with the term "dry" incubation. Sometimes it is taken too literally. I prefere the term "low humidity incubation". Some people can run dry and still have 25-40%. I only run completely dry if it stays above 25%, if not I add a sponge, but it is still considered dry because of the low humidity status.I thought that "dry hatching" meant that eggs are incubated in a range, not that it means remove all water from the incubator. In some cases, like yours, maybe it is appropriate, but for me it's not, 'cause if I were to remove all water from mine, the humidity would drop to 0%.
-Kathy