I hatched 6 eggs in my Brinsea Eco 20 and the temp was at 99.5 the whole time, I got 4 boys and 2 girls!Good luck to everyone !
This time around I am incubating at 99.5 f, trying to see for sure if this gives me more pullets or not, had a hatch last fall that was incubated at 99.5f instead of 100.5, that I got mostly pullets from, may have been a fluke, hatch day is 10/16/12 for me.