<html> <body> List, <blockquote type=cite class=cite cite="">    Really “never?” There can certainly be problems interpreting the SAT’s display, and when a string produces a “jumpy” display, yes, it can be a problem tuning a really clean unison using the display alone. According to Jim Coleman, the “jumpiness” is generally a result of a feature of SAT: the ability to hear and display two pitches of a “falsely beating” string simultaneously.     I find that the RCT (which I currently use) seems not to have this problem, at least to the same degree. Sometimes I do need to move the mike closer, but the display isn’t usually ambiguous. At any rate, I find that it is easier to interpret, using all three visual feedback elements (spin, growing, blushing). </blockquote> With some snips for brevity, along this line I'm curious to know if the VT & Tunelab have any of this "jumpiness" problem. I know my SAT III does! Avery <blockquote type=cite class=cite cite="">Regards, Fred Sturm University of New Mexico</blockquote></body> </html>