I used this to install field screws on the deck. It took me a while to set him up, but after that he never fouled again. It set my depth perfectly every time and I used the 2x6 as a ruler to make it easier to line up my shots. I turned 900 screws in 35 minutes without ever breaking a sweat or kneeling. As I started driving a row of screws, I held the trigger down until the entire row was screwed in. That worked best. I know I can drive faster. I won't install another deck without it.