Hey, I have the vl-18 with dual ducer with 9 and 19 degrees. I use the 19 deg at 12 feet and under and anything deeper than that, i'll got to the 9 deg cone so i can see better on the bottom. Sometimes i switch to 19 in deep water to see if there is anything out there suspended. Another option was to get the 12 degree ducer which is an half a$$ed compromise in my opinion. but I if you don't want to spend extra money, it might be ok for you. J.
