falcon - I have both. Paul's double shotguns and Morrow Audio SP-4.
I continue to use Paul's jumpers on my Totem Forests. Paul's wire was transformative in my system. I'd been using some Opera Consonance Joplin speaker wire. When I went to Paul's wire it was like the music put on 20 pounds of muscle. It just became a whole lot more palpable. I was worried silver would be shrill and unpleasant. Not at all. Because of some speaker placement changes and moving between an integrated amp and mono blocks, I needed some longer wire. I do not recall the exact reasons that led to trying Morrow wire. Maybe he was running a sale or I bought used. Not sure. Anyway, I got some Morrow Audio SP-4 speaker cable and that's what I'm currently using (along with some of his interconnects). Current set up is Totem Forest speakers<<Merrill Audio Veritas amp<<Consonance Ref 50 tubed pre<<Source. With this equipment I thought the Morrow's were a little bit more resolving than the Clear Days but I want to be clear that's a VERY tentative impression. I don't recall the difference in sound being enormous but there's a pretty long break in period for the Morrows and even the Clear Days take some time to settle in when they've been out of the system. SO it is hard to A/B things. I haven't gone back and forth switching out wire recently and this impression is based on my admittedly short and not too reliable audio memory. I did not sell the Clear Day cable and assuming it is long enough to reach, will try to put it back in the system in the near future and provide a follow up to you. I'm also thinking I'll try the Clear Day cable with the tube mono block amps and Silverline speakers when I switch back to listening that way. My recommendation, since both Clear Day and Morrow provide for in-home audition is get yourself a pair of each and decide for yourself. Hope that's a little bit helpful though maybe not all you were looking for.