Couple of observations from my first year running one of these multiple scan transducers.
* salmon fishing out of Oswego this summer I was able to mark a baitball on sidescan that I would not have seen in traditional or downscan. Staying on that baitball allowed us to get 7 bites in 2ish hours and basically paid for itself imo with that one trip.
* downscan has been really helpful out at Erie locating bottom composition transitions where Waldo was hanging out in the spring time. Stopped using it after about June when fish went deeper and started suspending...anything over 50 fow and it hasn’t been terribly useful for me.
* I basically traded gps mapping for a 9” screen by going with the Garmin striker 9” that has really basic/not upgradable mapping. Instead for mapping I mounted my iPad in the boat and used navionics with a stand alone gps. Navionics is powerful and the touch screen on my iPad works way better than the touch/buttons on the fishfinders out there...even the fancy lowrances.
* I’m still looking at the traditional chirp most of time and it’s awesome for seeing how fish are reacting to your downrigger...but having the 9” screen and being able to layer in sidescan and downscan can be really handy.