My biggest suprise while using one was up in Wi. The bottom was a consistent 30' and the next time I looked it was 60'. I just had to turn around and see what I missed. There must have been a sheer rock wall down there, it dropped 30' in roughly a boat length, and it was like that for about a quarter mile (the sheer face).

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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).