[pianotech] Yamaha Uprights

[Ron Nossaman]

On 12/2/2012 8:02 PM, Dale Erwin wrote:
> Yep, I agree too. It just hasn't been necessary in my experience, to
> weaken damper springs to fix double striking hammers and the dealer
> wasn't interested in paying for such things anyway. ROn N
>
>
>
> Initially  I did this on a mass installation of Yams. P2s and Kawais
> ust-7s and some prambergers at a college near Napa,Ca. The touch on
> all of them was ridiculously heavy.Changing  the damper spring
> tension
>
> transformed the touch in a beautiful way. Made em very fluid
>
> Dale E.


I don't doubt it for a minute, but the fact remains that in my 
experience, I've never HAD to reduce damper spring strength to get 
around double striking hammers, which is what I'm addressing.
Ron N