I've seen the plastic ones and wasn't impressed. There are several mfg of GOOD rod holders that quick change from one setup to another or out completely. I use Hi-Tek's extreme model, one of our sponsors, and like em fine. I troll, spider rig, drift and deep jig and they are out with the turn of one bolt. Some I had in the past took 3 tools to adjust. They have a very low profile base that they slide into, I have 9 bases positioned around the boat. Not all are created equal, so shop some and don't let the bottom line dictate your choice. You're gonna have em a long time.
Creativity is just intelligence fooling around