Fishing for walleye question

[Kent]

I dedicate most of my time fishing targeting walleyes. Side imaging is by far the most beneficial tool. walleyes on side imaging tend to show up looking like a grain of rice and the school, if they're schooled up....will never be in ball or swirl. carp and white bass will look more round and the schools are swirled. I dont have any good screen shots but i should start collecting some. My graphs read really well with the GT-56 transducer.

Thank you, that is the kind of information I was hoping to obtain.  Please define "swirled".