FIN ... if you've had a Eagle brand depthfinder, then you HAVE had a Lowrance. Eagle is basically just the low end Lowrance unit series +/-

If you're going to be stationary most of the time, you can ditch the DSI units ... their picture quality & rendering is dependant upon constant movement. You'll want something that has 2d capability, if you plan on keeping the depthfinder running during stationary fishing.

If you haven't already done so ... read thru my sticky post about the Elite 5DSI, at the top of the page. It has some charts & info that will explain the differences in 2d & DSI cone shapes/angles, as well as other info that may possibly help you decide which features a unit must have in order to benefit you in the ways you fish (& intend to use the unit).

Where you intend to mount the unit will also come into play. Down Image units don't distort as bad as Side Image units, when mounted on the trolling motor ... but, they can distort if the trolling motor is turned. It's the nature of the shape of the sonar cone of a DSI unit, which is more of a fan shaped (flattened oval) deal than the cone shaped circle of a 2d unit.

... cp