yours engaged with the footswitch ? Any info on how to toggle all of the Kitchen sink mods with that 2 button footswitch ? Tend to live on that BE C45 setting...Does the Friedman Marsha have a manual these days?
If you have a return level turn your channel master vol to half. Engage the loop use the return vol for your volume control not the channel master. This way you have enough send level to the effect.