Check out the newest Beyond the Academy Video Training Series. This one is entitled "Engine Company Operations: Hydraulic Ventilation with a Smooth-bore/Solid Stream Nozzle.
Many fire service members believe that a fog nozzle is the only nozzle that can be used for ventilation, and "prefer" a fog nozzle for that reason. These techniques show that a solid stream nozzle can be used as a hydraulic ventilation tool as well. We do not entertain the "Smooth-bore vs. Fog" nozzle debate, but we do have our preference.
As Tom Brennan stated when asked about his preference: "A smooth-bore nozzle doesn't make a terrible engine company a good engine company, and a fog nozzle doesn't make a good engine company a terrible engine company!"
Regardless of which one you use, know your tools, the capabilities and the drawbacks.
Feel free to discuss on this blog.