Hey guys, Check out a few before and after pics that show what Lake Amistad looked like with Navionics before the Sonar Charts feature was introduced and an after pic. This is only 1 user just recording as fishing over the course of 4-5 days. Not just going out and mapping the lake, he was fishing and preparing for a tournament, just hitting record on a blank SD card anytime he was trying to locate fish on structure.
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Before
[Linked Image]
After
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Before
[Linked Image]

Just by these couple of examples, you can see how important keeping your chips updated and how powerful doing recordings can be.