I am looking to upgrade my current fish finder and need TF's help. I have been looking at the Lowrance Elite 7 CHIRP and HDS 7 ( probably gen 2). I was leaning toward HDS because the down scan and side/structure scan intrigues me. However, after speaking to a very knowledgable salesman from BOE marine, I am somewhat confused. He basically only recommended the 3rd gen HDS, which is a little more than I was looking to spend right now, especially considering I wasn't even getting side scan. what is everyone else using and do you have any recommendations?