Let's say you have 5 stops after 10 am and that it takes 30 seconds to type and send the "I will have late air" ODS. That is 2.5 minutes, which may not sound like much, but could be the difference between the air being late or on time.
Let them know before you leave that you may have late air and then send them one message while on road.
I usually send them the message after my pretrip, as it is usually when I am finally able to get EDD. Once you try to get it on Orion, you cant do anything else. It has to be released, and until it is, we are sitting there with boards. Many times, I have to wait even after my pretrip is done to leave the building. It is not until then that you know what you have or where you start.
If you like working off the clock, you can go study the computer, but it isnt right until everything is unloaded either.
The fact is: They have the info before us. They get paid to know who needs help, the PC tells them before us. They dont care, just figure we will get it done somehow. And when we dont it is our fault. Which is why I run pure air, screw Orion, when I know it will be tight.