To be honest, I use to have this set as the tuner on the GT 10 but now that the tuner is so easy to access on the 100, I now have the Number pedal switch set to Cha. A/B because being the only guitar player in a 3 piece band and the one that sings about 70% of the songs, the less I have to move my leg when going to my lead, the better so I have channel B set as my lead. That way I can have some extra stuff on my leads to make them stand out and make it not sound so empty when the rhythm drops out but I'm wondering this, is there any way to make the light blink when I switch over to my lead? I know with the sound and volume being different, I will know it's on the lead but it would be cool to have that little light blink also to indicate that I'm on my lead. I know it can blink cause it does when I go to the next bank up lol.

Another thing I noticed is that when I have the left out going to the left return on the JC-120 and the Right out from GT but not plugged into the JC-120 right return, the sound is louder than when you go left out to return or left and right out to left and right return. So this tells me that if I go from the GT left out to the left return, I can make the sound louder by plugging in a dummy to the right out from the GT 100. I don't know if I would actually want to do this cause it may be to much volume but just a thing I noticed.