<html> <body> You might be interested in reviewing the recent mini discussion re: Correx & the Neuses alternative, which occurred on CAUT, as a response to David Ilvedson's posting of a question to both CAUT and Pianotech: Responses appear under both "correx tension gauge" and "tension gauges". The most informative response I think, came from William 'Bill' Ballard, which, for your convenience, I will reproduce, without permission, here: <blockquote type=cite class=cite cite="">Date: Sat, 29 Jul 2006 00:51:59 -0400 From: william ballard <wbps@vermontel.net> Subject: Re: [CAUT] tension gauges On Jul 28, 2006, at 10:54 PM, David Skolnik wrote: <blockquote type=cite class=cite cite="">Not to belabor the point, but David Ilvedson's question I think  asked whether the Neuses was as accurate as the Correx.  Do you  have any direct experience with both tools that could address that  point?</blockquote> I bought my Neuses out of the Jensen Tools & Alloys catalog sometime  around 1980, in their catalog as a means for adjusting relay springs.  (I got the two other sizes, 50-0-50 and 0-150g.) One of the first  things I did was to take it over to the Life Sciences building at  Dartmouth College where my father taught for decades. He set me up  with a gram scale with an optically magnified scale which read, as I  remember, in 0.01 gram increments. I had the Neuses attached to a post so that I could concentrate on  keeping the spring level on the scale platen as I applied more force,  so that I didn't have to worry about holding it. At each of the one gram increments, it was within a few 0.01"s,  accurate enough for me. That did require eyeballing the spring leaf  at dead level with the marks on the Neuses scale body. Necessary, but  not especially difficult. On Jul 28, 2006, at 2:11 PM, David Skolnik wrote: <blockquote type=cite class=cite cite="">If the Correx could read fractions of a gram, with a digital  readout, it would shoot to the top region of my list of "to gets" .</blockquote> I don't know what resolution (size of increments) you need within 1g,  but I've had no problem dividing the space between 1g marks into 4 or  even 5 parts. I'm happy being able to measure to the nearest 0.2g. mrbl wbps@vermontel.net Pray For Peace +++++++++</blockquote> <blockquote type=cite class=cite cite="">Date: Wed, 26 Jul 2006 11:52:48 -0700 From: David Ilvedson <ilvey@sbcglobal.net> Subject: correx tension gauge List, Is the Correx tension gauge the "state of the art" tool for center pins?  I have the Neuses simple gauge but is it accurate enough...? David Ilvedson, RPT Pacifica, CA 94044 </blockquote> At 06:23 PM 8/8/2006, you wrote: <blockquote type=cite class=cite cite="">I am interested in a Correx gauge. I know it is expensive but would like to know if anyone uses this gauge and is happy with it. Also does anyone know a good source for purchasing this gauge?   Jack Houweling</blockquote> David Skolnik </body> </html>