Ill never own a boat without side imaging again. Its the single best tool Ive ever seen for quickly spotting changes in bottom composition, weedlines, hard bottom areas within weed beds, rock piles, submerged timber…its just incredible. Down imaging is a great tool for getting a clear picture of whats right under you (or close to it). Both types are useful in both locations, but I use SI more at the console and DI more at the bow.