16ft ProCraft ...
Rod holder placement was chosen for Jig Pushing method, as I don't do Spider Rigging.
What's not shown (covered up by the front seat) is these units :
The Lowrance Hook 7 was the only unit I had when the boat pic above was taken. The Garmin/Livescope system was added a couple years later.
The best tip I can give is to get in the boat & place the holders to where you only have to lean forward a little bit in order to grab the rod. If you look closely at the rod holder mounting plates in the first picture, you'll notice that the left plate is slightly forward of the right mounting plate & slightly farther away from the gunnel. This was done so that I could deploy/retract the trolling motor without having to remove the holder. (just a FYI)