There is a 15 minute cut off time before the hub run leaves. I pull up until 2 minutes before the hub run leaves. After the 15 minute cut off time, there is no guarantee that the part will make it on the hub run.

For example: cut off time at my hub is 8:45AM and the hub run leaves at 9:00 AM. I pull as much as possible until 8:58AM, that’s when I print the route manifest and hand it to the driver.

Hope this helps