Just a little survey. I am an instructor of fire streams. When I teach large handline deployment(2-1/2" and 3") I get into some pretty high flows. My question is, When you pull a large handline how often or what percentage of the time are you actually advancing while flowing water. My teachings are geared towards pulling the big line to make a big initial hit on a fire from a specific place in a stationary position. Basically this is a ofensive attack.