Okay tell me what I'm doing wrong....I've been really dilly dallying with my 997 this year trying to find brush piles....I can print some great pictures of what I would consider "big" timber but when I go by brush piles that I know are there I can't make them out...Heres most of my setting,

range - 3x the depth
chart speed - equal to gps speed
sensitivity 11-13

Any suggestions?