Since I longline the majority of the time, the 360 would appear to be beneficial as it would show/indicate any fish or structure ahead of you and you could adjust course accordingly, and would work well for any method where you are moving. With the current DI/SI technology, you see what is directly below you or off to either side only at the position of the SI TD. I really think the SI technology is good for people on the hunt for fish such as new water. With so many guys having GPS/SI/DI, any new water becomes familiar water pretty fast when scouting as you can mark the POI for a later day or time.
I wonder how the 360 would handle the small amount of water turbulence from boat movement, would it distort the picture even at a "slow" speed of .7mph or so in the forward looking half of the picture. Slower speeds it may/probably not, but lets bump it up to 1mph or more when pulling cranks. I get no distortion from my HDS 8 when I'm moving from one side of a large cove to the other side using the TM on 7 or more which ='s about 1.8mph or so.
GO BIG ORANGE !
I meant to behave, but there were just way too many other options available at the time.