Ah, finally found some time to sit and listen to see what improvements, if any, Dave's GR*OOP brings. I will say that I strive to clean up all contacts and terminations once a year or so. More frequently would undoubtedly be better but, hey, I can indeed be lazy. Be that as it may, over the years I've tried a few different things but my go-to has typically been the Caig stuff. Hearing about what Dave has been up to with graphene, it seemed like a perfect opportunity to try something new.
I'm not one to discount expectation bias, but to these ears, I heard a big improvement right off the bat. Clarity and definition within the soundstage just sounds great - like those special but far too infrequent late-night sessions that remind you why you absolutely love this hobby. I will also add that while voices and instruments all sounded more distinct and detailed within the soundstage, the music just seemed somehow more relaxed and effortless, the opposite of edgy. I could go on using audiophool terms, but bottom line is that the GR*OOP made for a very nice improvement. I'll leave it to others to assess how it stacks up to other products and methods, but for me. this stuff flat-out works.
Nice job Dave!