cant see if this has been talked off before,
i run my guitar via 13 pin into the GR 55, then the guitar out to a GT 100 using just mag pickups only output to the GT100
ive noticed that when i have the GK3 switched to mag only and im playing away on just guitar, if i change a patch on the GR55 , despite it being for all intents muted and no sounds going to my pa from it, my guitar sound out of the GT100 changes. generally getting louder or quieter , maybe depending on the patch im changin on the GR55
i sometimes change the patch on the GR55 manually during a song to get it ready for another part rather than have the GT100 change the GR55 patch via midi.
anyone know why its doing this, its pretty annoying, i thought i wasn going mad at first, but its definately doing it.