Beware of tension problems. On my Guild Starfire I (which really wants medium-scale strings), I have tried:
- GHS Precision flats
- Ernie Ball Group IIIs
- Pyramid Gold 40-100 flats
- Optima Chromes
- LaBella DTF extra light (.039-.096, I think)
- Thomann flats (actually not that bad! €15!)
The only strings that sounded sort of right on that bass were the LaBella DTFs (but they were too thin, the G and D strings buzzed a lot against the bridge saddles giving a bit of a sitar sound when digging in). All the others, to different degrees, had E strings sounding weird (chorusy, badly intonated, really unpleasant overtones). Pyramid Golds are the ones that managed to sound the best, and they're still not quite there (but they take a looooong time to settle in; also, they bring out a really nasty dead spot at F# on the E string). The worst offenders were the Optima Chromes and the GHS Precision flats.
Yes, I crimp my strings when I install them and I ensure they aren't twisted once tuned. On my other short scale, a Höfner Club, I have TI flats and they have a perfect E string (and they really work well on that bass). I have a hunch that the thinner the strings, the better they sound (on a short scale). By the way, all of these strings sounded better tuned a whole step sharp.