Upweight Maximums

[Bill Ballard]

At 4:06 PM -0700 4/6/03, David Love wrote:
>I think that having adequate upweight is important and I would
>choose a slightly higher balance weight in order to achieve adequate
>upweight.  But it would not be my choice to set the action up as described.

UW needs to be adequate to satisfy two requirements: a safety margin 
during summer humidity, and for fast repetition. As to the former, 
I'd always heard that 20g was enough. As for the latter, I don't know 
an actual quantity, because here, the velocity of the parts, and the 
relationship between jack and balancier pinning, and the rep spring 
strength are equally important players.

I'm happy with 25g. I wouldn't need to go as high as 30. And I agree, 
I may wander outside the infield in adjusting action ratios, but the 
LHTR is one corner of the outfield I don't usually go.

Of course, Ric was pretty sparse in his details of the actual piano 
and pianist (and I gather, technician). I expect we'll hear from him 
soon.

Bill Ballard RPT
NH Chapter, P.T.G.

"You'll make more money selling my advice than following it"
     ...........Steve Forbes, quoting his father, Malcome
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