there is a small area in a local park that is so trashy i usually avoid because of to many signals just for the heck of it i closed my quickmast screen down to a small sliver in the upper right corner on the etrac i swing real slow and thourough and only have to listen for a high squeak when i find a good signal i work that spot and open up the screen to see if it still seems worth digging so far four silver dimes in one little area i usually hunt with an andy s. type pattern but in high trash this tricks working for me