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Found myself looking at a Bosendorfer grand selling for £78000 today. Luckily it is too big for our house and certainly way outside any budget I would have for a new piano. What surprised me was that it had an open wrest plank, if that is the correct way to describe it.

Following the post on the Steingraeber silent system I have been on the Steingraeber website and it appears they are another "traditional" manufacturer that still seem to prefer open wrest planks. I can only draw the conclusion that they do not have the machinery to drill through both a frame and wrest plank together. Why would you wish the wooden wrest plank to take all the loading of the tuning pins without help from the frame ? Also it appears that Steingraeber wrest planks are composed only of three wood layers. I would have to be persuaded that these more traditional practices were just as good as the more modern practices and materials.

Open planks tend to be more stable tuning wise as you get more feel of what the pins are doing. Stineways wile they have a full-frame there are no bushings so jut the same as an open plank tuning wise

Cheaper makes tend to used multi-laminated planks, and if the pins are too tite, then they tend to be jumpy. Bosendorfer pianos are a dream to tune.

Barrie

Thanks for the info Barrie.