Do you usually start getting sticky chicks when you do that? I cranked it up a while ago, as this was my thought as well. Went down there to check and I had three eggs where there were bubbles around nostrils or it looked like there was just too much fluid going on in the egg. I may have made the wrong move, but I went ahead and pulled their beaks out and tried to keep all the blood vessels intact. They still have a lot of yolk to absorb, but I figured it was this or they would drown in the fluid. Not moving much, but not sure if that is due to heat or me pulling their heads out (gently). I saw an article where someone wrapped a hatch chick in a towel and fed sugar water with a nutri-drench, wondering if I should try this after giving them a little time to see if they want to fight it out.