I been fishing a lot of deep water lately and saw an echo on the fish finder, I'm sure it was a fish next to a tree that is in 42 feet. As I passed over it, the fish finder showed the line/fish moved from the upper part of the tree to the bottom. After fishing that spot for a spell I managed to put one small fish in the boat. So my question is how far or deep do you think noise will spook a bass ?