I run an Eagle 480 on the T/M. I love the graph but wish it had GPS.

I use Bee ready rod holders. They are simple, adjust at any angle and stay there for ever. The riser will come out of the base when your not using them.
They are made of Stainless/Aluminum and ABS Nylon. I've been using them for many years and have yet to have a failure. I use the same holders I use for Crappie to drift fish for Blues.