Ok, so 5 eggs hatched out yesterday, with no pips, movement or chirps coming from the ones in the carton. So I float tested... I followed the instructions but am confused by the results. All floated vertically with 15% above water. 2 floated horizontally with 15% above water. What does that mean? It never says in the results how it should float...vertically or horizontally. Am I correct to assume vertically means duds? I'm so confused.