Has anyone ever installed a Hummingbird 597ci HD combo depth finder, sonar and GPS unit in a Formula? I'm about to start installing on and looking for helpful hints!!

I have an hds 5 which is a great combo unit. Was easy to install. Only had to run ducer cable from engine bay up to dash and reconfigure dash panel which I had all new gauges anyway.

Another. Countersunk

Next wanna add these

That looks really good!!!! Any problems with shooting through the hull?

Mine is transom mount right now. Panel still needs paint and hydro dipping. All panels are being redone. Commandersander did the work on the panel. Great guy.

Thinking I might pull the motors next "winter" if you call it that in south Florida and redo the transom. Has 2 soft spots in upper right corners. When it is redone I may switch to thru hull ducer

Ya I'm back and forth on transom mount or shoot thru hull!! I have heard it works alot better transom mount!!

We've had transom mount on all our boats and no problems. One extra hole in transom above waterline below platform. Seal it and no problems.

Does the second motor affect the placement on transom?

No. Mine is between drives down low on the v.