Just set up my HD500 with the 4CM through my Marshall's FX loop andI believe I have set everything correctly, but I would love to keep utilizing the gain channels too, if possible..can I have my cake and eat it too? I love the sound of my Marshall, perhaps I need to go through all the presets and tweek each one to get the most out of them...maybe the eq's are the issue...hmmm. Anyone using the HD500 AND their amp's own gain ? I have only had my POD two days, so maybe my concern is a bit premature...thanks.