I went ahead and loosened the strings and wiped with 91 alcohol....no real change, keep in mind i am used to flats and i think the Pressurewounds are about the smoothest 'RW type' ive read about and experienced....almost went with TI rounds since they are very smooth but no complaints with the Pressurewounds, the intonation is dead on E & A string and close on D & G string coming from a 105 set.
'Piano tone' compared to whatever was on there before which is remarkable for a Epiphone Newport with its lone neck 'mudbucker' with NO thud whatsoever and a lot of brightness with various picks...i mean 'way different' sound than the many Gibson EB0's ive played with flats...i do EQ-6 db at 110 hz on my Eden Metro which is the key to get the 'mudbucker' cleaner and leaner down low.
When I tried the PWs for the first time, I had been using Fender 9050L flats on my Fender Jazz, which was my one and only bass at the time. My first impression of them was NOT, "wow, these strings are great!", but rather "what's so special about them? They sound and feel just like any other rounds I've tried".
I went on a spree trying out all kinds of rounds after that, and it was when I came back to the PWs when I noticed how much smoother they actually were compared to any of the rounds I had tried. This just goes to show it's all relative, I guess...
I always tell people not to expect anything flatwound-like from PWs as they're definitely more "roundwound" both in tone and feel.