I think I would get that one if i did another one.
Look on youtube and see what information is on there. After the fact, I learned there isn't much on Raymarine. They are big in saltwater.
I have a Raymarine dragonfly Pro 4. Only negative is the maps they use don't cover everywhere I fish. Rome and Salacoa are not on the maps. Allatoona, Carters are on there.
Sonar and down imaging.