<!doctype html public "-//w3c//dtd html 4.0 transitional//en"> <html> This looks a bit better eh ??. Routed out a 20mm chanel 5 mm deep into the key and use the key itself to do the job of the flange.  I also repositioned the whippen magnets so that they are just behind the jack... as far out on lower arm of the whippen as I can get them. They are countersunk so that only 1 mm protrudes. Probably stay put better.  I am still getting about 12 grams reduction in BW this way (which is far more then hoped to be able to get) , and a more consistant hammer travel through the whole key stroke. I suppose this way of installing the key magnets could be further refined,  but I  will use this idea for the first piano.   <img SRC="cid:part1.3F0493E9.955DA9F3@grieg.uib.no" height=155 width=350>   <img SRC="cid:part2.3F0493E9.955DA9F3@grieg.uib.no" height=179 width=350>   <img SRC="cid:part3.3F0493E9.955DA9F3@grieg.uib.no" height=198 width=350> -- Richard Brekne RPT, N.P.T.F. UiB, Bergen, Norway <a href="mailto:rbrekne@broadpark.no">mailto:rbrekne@broadpark.no</a> <a href="http://home.broadpark.no/~rbrekne/ricmain.html">http://home.broadpark.no/~rbrekne/ricmain.html</a> <a href="http://www.hf.uib.no/grieg/personer/cv_RB.html">http://www.hf.uib.no/grieg/personer/cv_RB.html</a>  </html>