I don't know, blinky lights sell well because when properly applied they can make life easier, and will help inform the operator if they pay attention to what is going on.
JR
Yeah, it's getting to that point where the blinky lights *mean something* to the observer. I was very pleased with your original FLS® implementation and was able to make effective use of it as a time saver or confirmation of what I thought I was hearing. I came to the table with a pretty good idea of how I wanted to use the tool and where in the signal path necessary changes would be first applied. I totally grok the selling point, too.
Ivan's caution (and my agreement with) is based on "so fine, you know what frequency is, what will you do to fix it?" That doesn't come built in, either with the Black Boxen or the Gray Matter Computer.
Have fun, stay in the shade.
Tim Mc