<HTML> <HEAD> <TITLE>Re: [CAUT] New Renner underlever system</TITLE> </HEAD> <BODY> Hey, Jim, It is my understanding that the spring tension should be measured with the lever horizontal (parallel to the keybed) and the post tilted back.  At least, that’s the way I’ve always done it.  I think that, in this instance, consistency and precision are more important than the exact measurement you use.  Have you had any complaints? Regards, Ken Z. On 5/6/08 9:27 AM, "Jim Busby" <jim_busby@byu.edu> wrote: <BLOCKQUOTE>List,   When you adjust the springs (for grams) in the Renner underlever system how/where do you take the measurement? I’ve installed about a dozen of these and realized maybe I haven’t been doing it correctly. Here’s the dilemma;   Of course the spring increases resistance as you go upwards. When you measure the # 1 lever as it’s parallel to the keybed the grams read 30. Lower it slightly below (10 degrees?) parallel and it reads 26. Raise it slightly above level and it’s 33. Renner asks for 29 low – 32 high. Is there a “best” way to do this or have I been OK to just do them all at the same place, i.e. parallel, or level to the keybed?   Thanks, Jim Busby BYU </BLOCKQUOTE> -- Ken Zahringer, RPT University of Missouri School of Music </BODY> </HTML>