Hi! So I am a teacher and we have 3 call ducks in our mini brinsea advance. I originally set it for 28 days but as I have been reading it looks like calls hatch sooner. Day 28 would be March 28th. The automatic turning is set to stop on the 25th I believe. Should I stop it sooner? When? We set them on March 1st at around 1:00 pm. Thanks!!