Now that I'm playing in a jazz combo I thought I'd try out some half round strings. They start out in manufacturing as traditional round wound strings, but are ground down slightly to provide a smoother playing surface with less string noise. They're supposed to be as bright as round wound strings, but with the minimal string noise of flat wounds.
D'Addario Half Round Strings
In short, these are probably the worst strings I've ever tried. The wound strings are not polished from the factory, creating a rough surface that my fingers could barely slide on. What's worse, I could hear and feel this rough surface digging into my frets when bending! Take a look at your round wound strings and imagine grinding some of the surface off. What are you left with? A series of sharp edges!
To try and salvage the wound strings I polished them with some fine steel wool. This made them infinitely more playable, with smooth, quiet slides, and much less fret grinding when bending. However, it also made them much duller sounding. Now, the plain strings in this set are in fact the same strings that come in the XL Nickel Round Wound sets, meaning that they're very bright. The stark contrast with the now dull wound strings does not make for balanced sounding chords, so these strings are coming off.
If you like bright strings without the string noise, I recommend Elixirs instead.
I know this is primarily a metal site, but if you want to read more about jazz strings, check out this thread on the jazzguitar.be forums: string review megathread! - The Jazz Guitar Forum
if you want good jazz strings, i really recommend labella flats dude