I just bought a new Custom 50 2-channel C.A.D. Head and inside the bag that had the footswitch cable, power cord, warranty card, and safety instructions, I didn't see any kind of actual "owners manual"...should there be one? Is there an online resource? I checked the support/Amplifier Manuals section of the PRS website, but there's not one listed specifically for the Custom 50. Also, when I want to play quietly at home with it, is there any negatives to doing the "jumper" technique with a patch cable in the effects loop and adjusting the effects loop levels to lower the volume?!? I probably won't need to do that much, but I was just wondering. So, anybody else out there have one of these amps?