Well, I am packing up what I want to run at the big train show in Plano TX this weekend. I selected the Flyonel UP streamlined passenger set with all the extra pieces, A-B-A and 9 cars. I tested the PA and lubed the rest then let the train run.
Then I took off the powered PA and put my new GP7 on the front. That little engine with only one motor pulled it almost as well as the 2 motored PA. Just a little strain at first and it was off.
I don't understand how some of you are having trouble with it pulling more that 8 freight cars. There must be a minor problem with the weak engines. I hope someone here can give a weak one another look and find a solution.