Since you have them anyway, not a bad thing to have two screens. Like yours, mine is a 19 ft, and I find it beneficial especially when jigging. I'm standing stb side aft, where I can reach the kicker controls, frequent glances forward to see sonar. Large screen in centre of dash is much easier to see whereas GPS screen is obscured by steering wheel. Similar situation when I'm prawning or crabbing. But when I'm running, the screen right by the steering wheel is easy to see. It usually displays GPS with all the engine data overlaid.
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