Hello to all you experts !! This is my first batch of BCM's using my own home built bator. Quick question: I have a BCM the pipped on day 21, for 24 hours he did nothing more... Then it started zipping and has struggled to make it only half way around the egg and that took OVER 30 more hours !! Still struggling as I write this !! He is still alive and must be dead tired. Is this OK ?? I had one that pipped, zipped and came out of the shell all within a 2 hour time frame, why is this one struggling like this for DAYS ?? Thanks !