so I got the reagent A empty notification today, and went ahead and replaced it. Followed the task directions, but realized after that the bottle felt a bit heavy, so I decided to see how much was left in it. There was still 92mL of reagent left in the bottle. This seems WAY too early to have an empty bottle notification....and a complete waste of quite a bit of reagent. How much should be left in the bottle under normal circumstances?