This thread is definitely a "must read". After doing so, and in the spirit of the OP, a couple of questions:
1. Assuming the purple fuse is "better" than the orange fuse, what did SR change in its manufacture or design (other than color)? If there is indeed a change in the product, It's very plausible the fuse make a system "sound" better I assume the fuse only affects the electric current, which in turn flows through every circuit of the component
2. To follow, what type of audio equipment do the purple owners have? Tube/SS? Ultra high end or moderate specs/components?
I'm open to any tweak, but I try to eliminate at least some of the variables to make my results maybe more predictable?
Don't hate on me..I'm just asking a question for personal knowledge.