My understanding is that sometimes BPs will hold their poop for a long time, for no apparent reason... some of my snakes pass small poops regularly, while some prefer to save it up and surprise me by releasing the kraken all at once - fun times. If your BP has "sausage butt" and still isn't passing anything, it might be time to get curious and think about helping. Is Zero giving any signs of discomfort?
Agreed. I don't think it is anything to worry about unless he is showing signs of discomfort. I have had a snake go from shed cycle to shed cycle before and I have had a snake poop weekly. Every snake has a different schedule when it comes to poop.