Agree on the detail Salty
I run 455 mostly, only change to 800 in deeper water. I have found myself using 800 in say 15-20 FOW to get better detail on structure but other than that the 455 does what I need. Granted, I'm running a 898 with 6.4. I never seen a reason to change anything due to what I was getting from the unit and hearing of others woos. The advice I got her when I first started out laid a foundation to seeing better images and now I'm happy.
Salty, in salt water with all that sand do you find that you have to run a little higher in your Sen. than most speak of for a harder bottom?