Saran wrap sucks, use glad press n seal, you will see a big difference, the eggs are denting cause the saran wrap isn't sealing. when using the press n seal you will have to air the tubs, I let them go 2 weeks at first then I air them every week. the last 2 weeks before they pip, I peel back a corner to get a very small air hole and leave it this way. this is when the eggs need the most oxygen.