I would go hydraulic. System has been around longer and is very proven.
I would suggest hydraulic Trim Tabs if the boat is kept in the water, and electric if it is kept on a trailer or stored in a rack. 12x12 is the size I would install if it were my boat.
A little plug for Bennett, both our classic hydraulic Tabs and our BOLT electric Tabs have a lifetime warranty on the actuators regardless of the boat being kept in the water or not.
Let me know if you have any questions and I will be delighted to help.
Tom McGow
Bennett Marine
Thank you sir . The boat will be stored mainly on my trailer unless in the lake or ocean . I live a hour from the lake an 300 miles from the beach . But for the best I guess I should use the hydraulic setup .
Pretty easy to fix. Cut some luan plywood into the proper size strips. It will bend really easy and conform to the shape of the rail. Glue the first layer using PB and Clamps. Once it's cured, use Titebond III wood glue to glue 2-3 more layers to get the thickness you need. You can make some really cheap clamps for this by cutting 2" pvc pipe into 2" wide pieces and then cutting one side so you can pull the littel circles open and use em as clamps. Here's a pic of what I mean.
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The picture shows the clamps using 4". You can use 2 " for what you'll be doing.Is that 2" or 4"