Hey all, I don't know much about flats so here's what I'm looking for. I'm looking for a set of flats that have fairly low tension close to rounds, but are very mid focused with good punch. Any help and all opinions will be greatly appreciated.
Sadowsky Black Label Flats... light gauge (.040-.100) are a low tension flat that worked best for me. I tried the TI Jazz flats which, besides being more expensive, seemed too 'whippy' to me. I've since moved up to the .045-.105 medium gauge, but if you want a flat with a light touch they're hard to beat IMHO (of course) YMMV, etc.
Another vote for Sadowsky Black Label Flats in light gauge. These are fantastic strings, exactly what you're describing.
You get them direct from Sadowsky or Bass Strings Online http://www.sadowsky.com/strings/black_label.html http://www.bassstringsonline.com/Sadowsky-Black-Label-Flatwound-Bass-Strings--4-String-Set_p_556.html
I'm relatively new to the world of flats, but I like the Labella flats that I have. I recently tried a bass with TIs and I think I prefer the Labellas, though it's tough to know without doing an A/B comparison and having more time in the saddle. The point though is that I would recommend considering Labella flats.
Ah, I guess I don't notice a huge difference between the D'Addarios roundwounds I had on before and the LaBellas. But I'm not super sensitive to that and I kind of like high tension and thick necks, so I may not be the best source.
TI Jazz Flats for me too. I tried LaBellas. They sounded great, but the tension was too much for me, especially on a P5. TIs are expensive, but one set lasts a very, very long time.