I recently purchased a Seymour Duncan Convertible 100-watt combo with a tube (5U4G) rectifier circuit. I was surfing the Groove Tubes web site and noticed they have a little plug that replaces tube rectifiers with solid state. What affect, if any, will this have over the overall tonality of the amp? The web site alleges that a solid state rectifier increases power and dynamics, and never wears out. Sounds good, but what are the negatives? Thanks!