We never use anything else when we have the trailer on.
Most truck islands have a marked entrance side and exit side. Going through the wrong way causes problems. When entering correctly, the pump on the left is the master and the one on the right is the slave. You want to use only the master. Over the road trucks can use both since they have tanks hung on both sides of the frame.
Pull up to the pump. Most still do not have card readers on the pump. Some will read transport company cards but not bank credit cards. Take your credit/debit card (or cash) inside and tell the fuel desk (usually separate from the convenience store cashier) that you are "Private user on pump number ??). On a card, they may ask for a limit. Tell them $200. That just sets a pump limit. They will run the correct amount onto the card after you cut the pump off.
Go out and pump your fuel. As soon as you finish, immediately pull forward so your trailer is clear of the pump island far enough so the next guy can pull in and get set up.
I have never had a problem with the larger nozzles on the truck pumps (on an 06 Chevy). You cannot accept fuel at the maximum rate that the pump can deliver, but it is still faster than an auto island pump when you hold it about half speed.
Go back inside and get your card and receipt (or change and receipt).
Go move to a parking area if you have other business (food, restroom, etc) in the store. Otherwise hit the road.
I have never had a trucker object to my using the diesel lanes. They understand having a trailer hung on the back far better than the meathead auto traffic out front does. I have had people in a compact car give me far more of a hard time than any commercial driver ever would.