There are many ways to use an anchor trolley. It's like asking what's the best way to use a rifle? You consider the trolley a tool and then you consider your specific application. A guy using a trolley in a pond in a 5 mph wind is different than someone using one in salt water or then again different than someone using a trolley on a river or again on the flats.
Moving water I like this approach:
https://www.youtube.com/watch?v=OuPqqvZZXx8While I run a Micro Power Pole another anchor pin in an anchor trolley off of the nose of the boat and I'm pinned between two poles on the flats with spectacular boat positioning control.
I also use a Micro Power Pole in combination with an Anchor Wizard like this:
https://www.youtube.com/watch?v=MK53Vwr4bBoA trolley with a drift sock is also a great combo.
It's about options that are available to you and using the best approach for your current situation.