I fish down in LA. Lake Calcasieu to be exact so typically I'm running and fishing in 4-8 feet of water. Occasionally i will work along a ship channel that is deep40-60 feet but other then that i'm in the shallow stuff. Currently i have an old Garmin 498 and other then make lines on the gps screen it's pretty much useless. Charts are outdated and sonar just gives me rough approximation of depth. I have been reading all i can and I was thinking about upgrading to the Helix 10 si mega. Would it be overkill for what my fishing habitat is? updated charting and better sonar are what I'm after but i realize downimaging and traditional 2d sonar are gunna limit my view tremendously at my depths.
Are there other options I should be looking at?