With the ability to flood an average of 10 cookies per piping bag and sometimes creating 300+ cookies per week, I fill a lot of icing bags. I have noticed the bag is always one of three stages.
Stage 1 - the "Hand Cramp". A newly filled bag; the fuller the bag, the more painful the hand cramp. I am constantly resisting the urge to overfill the bag in an attempt to get more cookies iced.
Stage 2 - the "Sweet Spot". Oh, my favourite!! I can just fold the top over and the squeeze is delightful. It does not last nearly as long as I would like!
Stage 3 - the "Done Already?" Almost time to refill the bag. The question becomes - can I get one more cookie out of the bag? Sometimes it is like squeezing the last of the toothpaste out of the tube. And if I start icing a cookie, I have to finish it, otherwise the icing looks terrible, so there is a real knack to knowing when to throw in the towel. At least I know the Sweet Spot will be back with the next bag!