Wow, these guys are brutal.... Casper and pork chop must have been former J.B. employees.
The stores have you drop loaded trailer in the same door so yes it is double drop. You get 8 bucks for a d&h but 16 an hour. If it takes you an hour to do it, 16 bucks. If the dude can't find the manager and you are there 90 min, 20 bucks.
On a 5 day week you should gross between 900 and 1100.