We get a minimum of 4:00 of pay/credit for each duty period. With the adtg we also get a minimum of 4:45 of pay/credit for each day. If we drop the adtg, we will get an extra 4:00 pay/credit if we have an entire calendar day without duty.

The key here is if you have any duty period go into the next calendar day, it wipes out that option. The adtg however, would protect you from that.

You just need to decide if you would rather have a 4:45 adtg or 4:00 credit to add on to a trip with an entire day without duty, while running the risk of not getting it if one duty period went past 11:59 PM (This does happen).