Running control wires in a wall that has a double ceiling, multiple plates or fire stops can be frustrating. To solve this, I use pieces of 1/4” tubing. I drill my holes first. I use the tubing to guide the snake through the holes that I drilled. Since the tubing is more rigid, it will follow the holes easier. I then push the snake or wire through the tubing.
Smaller wire such as thermostat wire can be pushed through the tubing without a snake. Nonmetallic (NM) wire and metallic-sheathed (BX) wire can be attached to the snake as they are pushed through the tubing. The result is that the wire or snake ends up where you need it — and you save a lot of time when you don’t have to search for your snake through the holes.