I believe I was the first customer of the Kaplan cables. A while back I purchased a pair of Pure Note speaker cables from Kobe of Hifi Logic in NJ. A week later he called me and said he had heard an awesome pair of speaker cables he wanted to bring over for me to hear. whitin five minutes of listening to them I placed an order and have been enjoying music since then.
Just last week, the same Kobe told me he was selling a used pair of Klee cables for a customer of his and asked if I'd be interested. I asked him to send them to me so I could A/B them with the Kaplan. Much to my surprise the $2,000 Kaplan was more to my liking then the almost $9,000 Klee. Although the Klee was slightly more transparent, the Kaplan had more "truth of timbre" and was over all more musical.
Mine is the original GS and has not yet been upgraded to Mk111 (now calld the Waveform Fidelity). I plan to upgrade mine shortly to this phenomenal cable. Of course I believe that cables must be listened to in one's own system. My recommendation to anyone is to try these cables at home and decide for your self. Hifi Logic offers this service