My concern with these has been why there is not advised to dry down the panel somewhat prior to installation... or take regard at all to panel MC. Given all the discussion about the effects of rib constriction on climate induced panel change you'd think this would be advisable. These are relatively new devices. It will be interesting to see what happens to the various installations done at random climate conditions in the next few years. RicB David, Before gluing these riblets do you wedge up the soundboard or lower string tension? Albert Lord.
This PTG archive page provided courtesy of Moy Piano Service, LLC