I have a HDS-10 & HDS-7, and love them. They are not the Gen-2. Before I had these Units, I bought the HB1198SI and the HB898SI. I was very disappointed in the side scan of HB. After a couple of months, I contacted HB and had one of there Techs to come out and set up my boat after several e-mails and dicussions about the units. Sold them and bought Lowrance. Bottom line is that neither of my units were as clear as my brothers HDS-5.
The Lowrance Units (IMO) have a clearer image on the Side Scan. There were things about the HB that I like better than Lowrance, more user friendly, but I was after the best Image I could get. Didn't take long to learn how to move around on the Lowrance. Lowrance is a little more money, but worth it.
Just the experiance of a guy that has owned BOTH units, and why I changed.
keith
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Keith Simmons