<html> <body> Thanks, Joe. IMO, that's why it's so important to learn how to tune aurally BEFORE one starts using the ETD!!!!!!! Avery At 10:53 AM 9/12/05, you wrote: <blockquote type=cite class=cite cite=""> Robertt Finley asked : "Until now I have been performing the FAC stretch calculation/analysis = using the SAT III on the piano and then began tuning chromatically from = A0 upwards, tuning the single string unisons, and then the two and three = string unisons as I go along, using rubber mutes. I am wondering whether = it would be better to strip mute the piano, tune all the single strings, = perform checks on the intervals and octaves, and then go back and tune = all the unisons. =20 What would you advise that would produce the best, most accurate and = fastest result? Thank you for your help.=20" Robert, Please refer to my Tuning Article, PTJ, January 2000. This system will, hopefully, start you on the road to good Aural tuning. Most techs, that I've queried about the FAC system, have found it somewhat lacking. It is a system that will get the "beginner" a reasonable/commercial tuning, but that's as far as it's able to go, IMO. Regards, Joe Garrett, R.P.T. Captain, Tool Police Squares R I</blockquote></body> </html>