As you guys know, I just got the Warmoth P/J bass about two weeks ago. The seller told me he put Fender rounds on it right before he brought it to me. But the Fenders, although they sound okay, feel like a rasp under my fingers. They do produce a good sound for slap bass but I wanted to try something else. Normally, I would have went with TI Jazz rounds but they are not the best for slap. So, after reading everything I could find concerning smooth feeling rounds with a lot of sizzle and good longevity, I chose the DR Hi-Beams in 40-100. Supposedly they sound really bright, and have good thump after a month or so with sort of a scooped mid and last a long time. And they are supposed to be really, really smooth and flexible. Any of you guys use them and if so, what is your opinion? BTW, I also ordered a 5 guitar stand as well. GAS, you know.
I’ve used the DR Hi-Beams before.
I’ve loved every DR string I’ve used even when some were not what I wanted sound-wise at the time.
The Hi-Beams are my favorite of theirs that are steel wound (they are steel wound, right?).
I prefer the Sun Beams, as they are nickel wound and easier on my fingers and softer in tone and tension overall.
(The bass I use them with is a Modulus sweet spot, and it is so bright and responsive on its own, I need strings on it that will help mellow it out or it is a bit too extreme on the high end for my taste.)
DR = amazing strings.
I’ve used the HI-beams, the Sun Beams and the Lo-Riders.
All awesome for their different vibes.
Steel for slap is great. I’m surprised at the small gauge size. I’ve never used a .40 on the G.
But it should be great for keeping things loose and slapping against the fretboard.
Thanks for the reply. I searched on TalkBass and it was almost unanimous that Hi-Beams are awesome in feel, suppleness, and longevity. And the slap tones are great. I tried to learn to like the Fender rounds that are on the Warmoth P/J. They sound okay but feel like a cheese grater under my fingers. I think my TI Jazz rounds ruined my fingers to the point I am now sensitive to the feel and like my strings to be smooth even if they are rounds. I hope everyone was right about them.
Like @Gio I personally prefer the Sunbeams because they are nickel and feel better under my fingers. I also like the Black Beauties.
Elixir Stainless Steel 45-105, particularly for slapping.
The feel, tone and long lifespan are touted by a lot of players.
Anybody have experience with these?
As others have said, DR strings are great. Unless you really want steel strings (and for slap this is certainly a common choice), I would recommend the DR Pure Blues as awesome all-around, smooth, great-sounding nickel roundwounds.
Victor Wooten uses them, and he slaps the heck out of them 
(To me, most steel strings feel “rougher” than most nickel wound strings)
@joergkutter, have you tried Elixirs, steel or nickel?
Correct me if I’m wrong, but I seem to recall that Josh uses Elixirs of some flavor. Anybody know?
Whichever strings he uses, he slaps, taps, plucks and chords the crap out of them and they ring beautifully.
Nope! So many strings, such a limited budget
Sorry!
The DR Hi-Beams was one of the few strings that actually felt really different. It took me a bit of time to get used to the (smooth) feeling. Great strings for sure!
Here’s a tonal tour of a bunch of different strings brands, materials and styles. All are played by Thomann’s go-to player using the same Jazz bass.
No problem, @joergkutter! Just curious.
I’ve got some S.I.T. nickel-steel rounds on my Sire M5. They feel really smooth and they sound like great all-around strings.
Still investigating other strings/tones. 
I don’t know them at all… and I don’t think they are that easy to get ahold of in Europe!?!
I have a set of Galli Synthesis (apparently a hybrid using windings of steel AND nickel) sitting in a drawer waiting to be tested…
@joergkutter, I use SIT Foundations 40-100. They’re handcrafted in the USA.
I searched on Thomann but didn’t find them there.
It’s kinda weird that they didn’t include tapewounds!?! As far as I know, coated strings and tapewounds are not the same…
So, while I haven’t tried the Elixirs, @MikeC , I have tried tapewounds (D’Addario and LaBella make them) and they are a quite an interesting type of strings. I like them on my P bass 
I used Elixir for a spell.
They had a very long life, and I worked at the store where I could get a discount on the strings - that was why I got them.
They are pricey, but they last.
The sound is slick.
I stopped using them because they were harder on my slap thumb than regular round wounds, and the tension felt higher and tighter than other strings.
Thanks for the Elixirs info, Gio!
So, what strings you think are good for slap? 
I’ve used DR Sunbeams 40-105s and I thought they were great.
Cool. Got some on the way.
I loved nickel coated round wounds.
The steels are even brighter, but they were tougher on my slapping fingers and the bass I was doing most slap on was already too bright.
Nickel, to me, has the nice combination of relaxed string tension, not too hard on the fingers, and plenty of snap and bright clarity in the sound.
My favorites were DR sunbeams (105-45) but I could never afford them in bulk (and I tore through strings when I was gigging a lot) so I got very used to the D’Addarios.
Great strings.