I updated my 2003 model with a brand new HB 899. I have watched some tutorials about fine tuning the image and have messed with it enough that I am seeing a great image. My question relates to fishing what you have found. My transducer is mounted on the back of my 16' jon boat. Say I see a fine looking brush pile 60' off to my left, how is the best way to go about heading over to it to fish it since it is already past the boat? Do you toss a buoy and hunt for it after changing to DI or can you freeze the screen and set the brush pile as a waypoint without actually being over it in SI mode?

I know this is probably a simple question but SI/DI is all new to me