Just looked back at Rob Francis's post. He has bought plastic \ composite tabs.
I assume this will stop the corrosion of screws as well.
When I set my tilt & trim to mid position and the sea is flat, If I open Small Fry Up she will do 32 mph acording to my GPS.
The problem is that it keeps ( porpoising ) ( I think that's the right term ).
The bow climbs and falling, giving an unstable ride.
If I adjust with tilt & trim, It stops the porpoising but the steering gets heavy as F.
That sounds like I need trim tabs I think
Thanks again,
Jim