I have a eagle 480 up front and do not have a problem staying on brush, but I always throw a marker ,then line the top of brush with marker and bank ,also can tell which side brush is on because I tilt the xducer forward a little and turn TM to each side which will tell where brush is, but I sure the narrow cone could help,only problem when you come off brush if xducer is not tilted a little then you will not know which side the brush is on unless you have already line bouy with bank,all I am saying is each has it place but for DI have not been convince that it is better than 2D on front,I have a 798 but so far up front I would go with 2D while JIGGING