measuring ratios, (was popsicle)

[A440A at aol.com]

Greetings, 
  I have been using a 6 mm block attached to a weighted length of 2X2 on the 
top of the key, and a dial caliper to measure how much the hammer rises.  This 
gives me a ratio in approx. 15 seconds, ie.  if the hammer rises 36 mm, it is 
a 6:1 action.  If it rises 30 mm, it is a 5:1 action.  if it rises 33 mm, it 
is a 5.5 action etc.  
   This system will also give me other info, as in progressively using two 3 
mm blocks, which will tell me if an action has a higher ratio at the beginning 
of a hammerstroke (bad progression), or if the beginning ratio is lower than 
the final, (good progression).  
Regards, 

Ed Foote RPT 
http://www.uk-piano.org/edfoote/index.html
www.uk-piano.org/edfoote/well_tempered_piano.html