I have 3 graph. Well four.

93sv echomap plus and TI2 elite. I have been using the elite ti2 for some while. Is there a big difference in one or the other. The echomap unit was used for livescope and the transducer was never installed.

You would have to say what the purpose of the graph would be.

Finding sand bass, stripers and catfish. Locating trees with crappie

If you’re just planning on using 2d sonar and DI/SI, then there’s not much difference, those transducers are close enough to each other. If you going to use livescope, the the Garmin for sure. I’m you had a newer Garmin (the uhd model), that used the gt56, then that would definitely be an improvement over the Lowrance.

I don’t think that Lowrance works with active target anyway, so it’s only a 2d/di/si discussion. The Garmins probably easier to use, but if you’re used to lowrances menu, you might prefer it. In other words, I’m not much help.