I've been playing Cleartone EQ (mixed alloy sets balanced string by string) but these have become expensive, and the mix doesn't work as well on my small body Lowden S32 as regular PBs. So I bought the 6-set loose bulk pack with an effective under £2.30 a set when ordered for optimal shipping with other items. These are a regular hex core string, so they do have a slightly less flexible feel than thin gauge round core types (only made in uncoated and usually expensive). With a very assertive guitar they work well; I had someone ask where my amplifier was last week assuming my solos in an acoustic session were amped - not the case, just very powerful and free from fret clatter. They are no more rigid than standard D'Addario hex core etc though. The coating is, at a guess, a PTFE dip not a plastic and they feel like uncoated strings but with less finger slide noise. They last well with my dropped D bass losing its clang first, and I prefer that - I do not want loads of high harmonics on the 6th string. High fret intonation has proved accurate with these when it was hopelessly sharp above fret 14 using Martin Monel (not an experience my ears wish to repeat!), and best with 80/20s - but for PB these are good. Played gently bare nail fingerstyle they are just right, played hard with thumbpick very full and loud.