Personally, from a sound point of view, I'd go for ECB81 Chromes (.045 -.100) rather than La B's on that Sire... they just seem to work really well on a J-type bass. Just give 'em a liberal wipe over with Vaseline when you've got 'em on
The La B's seem to work better on a P.
I've spent years swapping Chromes, TIs and LB 760's around, including fiddling & faffing about with the ensuing set ups, and now.... My Work Is Done
Tension wise; the Chromes are a bit tauter than than the 760FL's, which are a bit tauter than a bog standard set of D'Ad 105 nickel rounds, which are a country mile tauter than the TI JF's
'Course, this was all playing-fields when I was a girl!