The new Humminbird Gen2 or Gen2n provide extremely sharp images with the addition
of "CHIRP" technology and "MEGA-imaging". Played with the Helix 10 at the Humminbird
Seminar at the Grizzly Jig show by the pros from Humminbird and was impressed.
I believe you can get the new technology in the Helix 7 on up. Be careful when buying
on-line as many sellers are getting rid of the older stock (Not Gen2). Best of luck!!!
Tight Lines - Dave