For what it's worth, I bedded the beams on my old N20 with epoxy and microballons.

The thinking is that it gets more contact (square inches) between the beam and the hull, reducing the point loading on the beam bolts and beams. If you look the beam and hull have slight imperfections that don't allow even contact along their mating surface.


Taped off hull sides and beam bolt holes, waxed beam (to facilitate future removal), mixed epoxy/balloons to peanut-butter consistency and applied to beam (keeping away from beam bolts. Seated beams and tightened to 80% of "full tight". Once epoxy kicked, continued tightening. Cleaned up excess.

It seemed to make the hulls flex a bit less, especially when dolphin striker is tensioned correctly.