Need some help with the Attenuator. I have only read minimal info on these 'gadets' and I like the idea of what they do. The thoughts of my amp driven to pure od sounds like a great idea. I play a Fender Deluxe Reverb RI which, of course, has no od channel. Currently am satisfied with the Java Boost and OCD for od needs; but I wonder as I wonder what the amp would sound like with the attenuator. It's just a mystery to me. Can you tell me if running one would shorten tube life dramatically as I cannot afford to replace tubes on a monthly basis? Which 'brand' would you recommend? I know nothing of what I would need here, but am willing to give it a try so what do I need to know BEFORE BUYING? Thanks alot!