Ernie Ball Super Slinky Flatwound Bass Set, .045 - .100

These are good strings, but not my cup of tea. If you really want flats that sound mostly like rounds, these are for you. The tension is fairly low. They don't have a luxurious feel right out of the package like GHS Precision Flats and Dunlop Flats do. The feel is more like a lower-tension version of Chromes. I put them on an Ibanez RB820. I play with both fingers and a pick, and I play mostly various genres of rock.

My gripe about them is exactly what many might like about them. They sound too much like roundwound strings. They definitely don't have the string noise of rounds, but they feel fairly bright, and they have a lot more sustain than other flats I've tried. But they seem a little thin in the mids. If you want a bright and zingy set of flats (and I imagine you might) these are for you. I like my flats to feel a little more percussive and less sustainy. I play a lot of flat-picked punk rock on my Dunlop flats, and I suppose if I were looking for a more post-90s picked punk rock sound, these would be perfect, but they don't have the flatwound dankness that I crave.

I bought these to place on a Squier VM 70's jazz. I bought it used and it had Roto flats. Which sounded and felt good. But the tension just too much to play long sets on. I read other reviews and took a chance. Followed specific install directions from EB. Immediately I noticed a nice punch and clarity. Nice string balance and they felt great. Tension was perfect more on the low side, not TI's low I would say comparable to labella LTF's. Both which I have on other basses. I can't wait to play these in a band setting. Also great slap tone. Very impressed with these.

I use the 50 70 85 105 set on fender JB's. Previously, I was using the D'Addario chrome flats and half rounds in the same gauge. Loved both of the D'Addario types, much more expressive than any other flat I'd previously used on my Fender JB's.
These EB's just go a little step further in making the tone brighter. Noticeably brighter, although not by such a huge expanse that you'd be blown away, but you will be pleased if you're after the brightest tone possible with a flat string. They punch out articulate notes without the thud of mellower flats, and sustain beautifully. The resolution between notes when holding arpeggios is one thing that stood out when I first used these.
They feel a little different to touch. More "powdery" smooth than the D'Addario "glossy" smooth. Definitely not sticky or grippy. Sliding along the strings there's an almost inaudible sound, and the cellist and pianist I play with have never commented on string grating like they have from my rounds on a PBass. If you play a fretless, and are worried about marking your fingerboard to the point of being an obsessive freak about that, you may want to take a close look at the strings first as there is a miniscule gap between the windings. But I doubt it would mark the board unless you gave a Tarzan grip (any opinions?).
They've been on my newest JB for 8 months now, and they're sounding just as clear as I think they were originally (the bass itself is still in its 1st year too). I'll be putting a new set on soon (due to a tweaking of set-up), so I'll be able to do a proper comparison of 8 months old versus new, but I'd be surprised if there's much difference. I'll let you know.