On Stompbox.net a user presented a nice idea. The Boss GT-10 & Boss GT-8 can automatically switch between bank mode and manual mode! Manual mode when playing and bank mode when not playing.
This means that as long as we're playing we can e.g.
You almost get one answer when dealing with the question about the signal level: "Use the highest possible signal level because otherwise the Boss GT-8 and GT-10 analog / digital conversion will produce undesirable low quality results (digital aliasing)." Simultaneously you are pointed to the fact that you must not overdrive the input of the Boss GT AD-converter because then you'll get a lot of digital distortions.
Who don't know the problem? You play the first song with fingerpicking, the next song with a plectrum and the last one is much louder. Therefore my clean patch had a compressor assigned to the CTRL pedal. But, there's a much better way without the CTRL pedal.