Bought the Jamerson Set. .052-.110 Labella stainless flatwounds. I've been wanting to try these for a while, but I couldn't find them locally, so I ordered them from Elderly. I put 'em on yesterday, and they sure are BIG ! I had to throw a little tweakage on my truss rod, even though I had .050-.105 Ernie Ball flats on prior to the Jamersons. So how are they? First, they're ssssmmoooooth. Very slick and nicely polished. Not quite as smooth and polished as the Fender 9050's, but close. Smoother than Ernie Ball or GHS flats. They have a reasonably bright sound (for flats), with tons of bottom. Plenty thumpy, with good sustain. It'll be interesting to see how they sound in a few weeks. They appear to be round-core, with the core having a spiral cut in it, maybe to hold the wraps better. They don't feel quite as stiff as I expected, though obviously tension is high. Oh, yeah, I've got them on my Precision.