Has anyone done the "Dumble" Mod's to a Deluxe Reverb Reissue? I guess Alexander doesnt make them into a Dumble, but he tightens the bass up which is what I'd like to do to my DRRI. Any idea's where to start? I've put a Scumback H75 65watt speaker in it. Getting a complete Mercury Magnetics kit for it next. But internally what do you think should be done? Thanks in advance.