I replied to someones PM about which finder to choose. I though I would share part of my response. It might help someone who is choosing a new finder. I would also like some feedback from crappie fishermen on the real life usefulness of the 3D units. I have started to do a bit of spider rigging and I can see how especially helpful this could be with suspended fish. Also crappie seem like they don't want to move far to hit a bait most of the time. It seems to me the more accurate you are in your bait placement the better you do. More so than with other game fish. Here is a portion of my response. Finders have always been about situational awareness- how deep is the bottom- how deep are the fish?- what size of fish is it?- is that a tree?- is that bottom hard or soft?- ect.. Up until now that picture you saw on the finder for your sonar and downscan was a picture of the whole cone of sonar returns under the boat. The deeper the water, the larger the cone. You can do a google image search and see the diameter and square area for the different depths and Khz. So you know what is below you, you just dont know exactly where, and the deeper the target, the larger the uncertainty. That is better than knowing nothing of what is below you, but not ideal. With 3D capabilities you can see exactly where the fish are within the sonar cone. That is why I think it is the future. Right now all manufacturers 3D resolution is less than side and down imaging and the data is fat and heavy but the ability to see exactly where the fish are is a game changer.