I bought a pair of SL14s after hearing them on Dave's tour a few years back. I liked them a lot, finding them to be very open and refined, but they didn't have the bass power of the 7 ga. AZ Satori Shotgun biwire cables I owned and sold them, giving up some refinement for slam. Not a great trade off in retrospect.
I've recently put in a lot of time fine tuning my office system, which features LaHave Mela monitors, which use the Jordan 50 MM for mids-highs. This driver is extremely detailed and extended, which I like, but they are unforgiving of any distortion or hash from the front end. I switched to Zenwave D3 ICs a few months back, and that was a step in the right direction- cleaner and easier sounding. With that experience, when a 4ft pair of SL11s (2 runs of SL14s, essentially) turned up here, I bought them and was very pleased. They brought more of what the D3s had provided- just a cleaner, more open and natural sound. The combination was spot on.
In my main system, I recently bought and had modified a Nuprime ST-10, 10H stack to drive my Von Schweikert VR-5 HSE. I learned early on that the VR-5s are much better bi-wired, and have been using Signal Cable silver refs in bi-wire config. These cables have the best lower range I've ever had; bass is very deep, yet very fast and focused. I found the top end was not as refined as the SLs I was using in my office, so I ordered a pair of SL17 from Dave for the mids and tweets.
I got them yesterday. As these are the cables Dave used in his break in tests (another thread here), I plugged them in and sat back. The sound is everything I had hoped for. Relieved of the bottom end duties, they allow the speakers to sing beautifully. Top end extension and refinement is the best I've had.
I should mention I'm using Dave's D4s in this system, and the qualities of these cables are very synergistic, as I found with the D3s.
Dave recommends the SLs for high efficiency speakers, and I can add to that list using them as upper range in bi-wire systems, or doubled up for full range duty.
Dave has demonstrated again that his work really shines. I can't begin to claim I know this stuff like Dave does, but if you're looking for a great sounding cable, give him a holler.
Over the years and after a LOT of to and fro in cabling (and lots of $), I'm down to using Dave's ICs and SCs in both my best systems and am thrilled with the results. It feels like coming home.
BTW, SL11 = 11 ga., or double runs of SL14, which in turn are double runs of SL17.