So when a small car in front is done quick with 10 gallons and a big truck behind getting 30 gallons, the person waiting should let the front spot stay open that whole time after the front small car leaves? That is inefficient. Costco has plenty of room to maneuver around in my experience. I don't see your "double pumping" making it more efficient.
I agree. I do try to use discernment. If I am waiting behind the two cars that are filling up, I track when they started the process. If the front one pulls out first, I will wait based on my estimate of how soon the second one may be finished. I will pull ahead if they are way behind - for example, they have put the hose in their tank for a few seconds or less when the other driver is pulling out. I also factor in the size of the cars, if the front one is a Mini Cooper and the rear one a Ford F150, then I might also pull up of the Mini Cooper pulls out.
I find it easy to back in, particularly when using the SUV with the rear view camera. As someone who is used to backing into parking spaces in parking lots, it is easy for me to do.
Especially if slot 2 on the other side is someone who is standing in the middle, having pulled on the "wrong" side and is stretching the line to pump (why do ppl do that?)
Often the line with the pumps on the passenger side, which is where the "wrong side" tends to occur, are the shortest, so I will use them. At our Costco there is plenty of room too pass through when pumping on the "wrong" side, and most folks stand behind their car and not where they can block the drive through lane.
People in this area tend to be polite
. I have been waved to go to the front pump by folks in trucks who tell me "I have a while to go, you should go ahead of me", and then when they are done, will patiently wait if I am not done. The Costco gas attendants will also waive car forwards and help direct them in backing up to the pump. And if someone is standing in the middle, once they see a car wants to go through, they move out of the way. I cannot remember the last time I heard someone deliberately honk their horn at someone else.