I fish for common skate, it is a waiting game and I use lever drag reels with the drag set so it just stops the line being taken off the reel by the tide. Move the lever a fraction too far and the reel is sat there with quite a stiff drag. I have had skate snap rod holders off my last boat and ended up reinforcing them with stainless bolts. So rod holders are important for my fishing.
being a new boat I didn't really want to go drilling the transome so I thought of how I could fix the holders securely to the boat. The most secure non permanent attachment to the boat is the engine so I thought I would utalise that.
I also noted that my engine sits about 2" too low for optimum performance so what I have made "kills two birds with one stone".
I bought some 50 x 20 mm aluminium tube for £10 from ebay. I didn't want to go scratching things so I covered it in rubber. What you do is get a old bike intertube. Tie a bit of cord or fishing line to one end and drop the line down through the inner tube so you can then turn it inside out. Inside out the innertube has a nice smooth finish. It is a bit of a fiddle (use talk) to get it over the aluminium but the end result is good.

here is a before and after photo
Then I bolted the base parts for two scotty rod holders to each end.

Obviously the bar was cut to length in the first place

And the finished thing

The bar is never going to go any where and does not compromise the engine mounting. The rods are held in the far corners of the boat leaving maximum room inboard.





