Centerboard noise reduction

I call this post a noise reduction, but it's more like a hummer banging reduction that centerboard produce when you are cutting through the waves.
That's because the centerboard iron plate has too much play in the trunk, almost 10 mm on each side and when the boat heels to the opposite side, that small gap can make noticeable banging sound.

Searching through the internet, I've found several solutions like a piece of rubber or stainless steel spacers with HDPE sliding pads as on Avar Yacht A25 of a friend of mine:

Avar Yacht A25 centerboard spacers -
two pairs in front and back of the steel plate

This is the stainless steel centerboard used on TES 678, but same design is used on Phobos yachts:

TES 678 staineless steel centerboard

However, last year we met a sailor with his older Phobos 24 and he fixed it with just an ordinary carpet. It did not sound very marine solution, but he told me he has it for more than 6 years without any problems.

Luckily we have a trailer with two support bunks so I can reach the centerboard trunk easily.
Using the hot-knife a.k.a. modified soldering iron, I cut two 2cm wide and 1m long stripes of the ordinary fully synthetic carpet and glued it with Sikaflex 291i covering the area starting just behind the centerboard pin to the end of the centerboard.

centerboard with carpet on the walls

detail of the carpet

The banging sound disappeared completely so we can now enjoy the silent nights with a dropped centerboard.