I've got lowrance hds10 gen1 and hds7 touch both with structure scan, most of my friends have lowrance units so it makes it a bit easier to figure out how these units work or how to get them to work better. I'm liking the hds touch so much I'm thinking of upgrading my hds10 to a touch unit. Best thing to do is go over to cabelas and play around with each unit and see which brand, unit , features you like

