Looking to buy new units because I'm tried of the basic maps being so far off any suggestions? electronics
If you want flexibility with your mapping options, as stated above, you will want to stick to Lowrance, Humminbird or Raymarine. All of those units give you multiple mapping options with all of the 3 taking Navionics mapping as their common. Some of the maps are better than others and that is somethign you should look at the areas you fish vs the mapping available to decide which you feel is best for you. You can view the mapping available from Navionics at:http://webapp.navionics.com/#boating
Also, there is still work to be done, but the issue with the mapping in the timber at Toledo has been helped tremendously with the Navionics Sonar Chart program, not saying all areas are covered or perfect, but have been improved very much. To see the difference just toggle the sonar charts layer on and off while looking at Toledo Bend on the Webapp above.