Probably of no use to you offshore guys but this is a nice addition for the river.
Utilizes your seat mounts to keep everything on the other end of the boat out of your way. Bow or stern. He makes 8, 10, & 12 rod holders. The 12 like I got is around $100. Others are cheaper. All work done with a CNC machine. Built from Starboard.
Check em out at Fatfishdesignz.com or on facebook. He makes a nice product.