You can't go wrong with Boomers.  They are bright but not harsh, and are consistent in manufacture, pack-to-pack.  I've never been let down by these strings, for either my basses or my guitars.  The red silk on these grips the machines well (and looks cool), and once they have been broken in they stay in tune.  These strings are equally at home on a Precision or a Jazz.  If you play a lot of mellow, upright-bass-style jazz, they might be a bit bright for you, but for 90% of what most people play, these strings deliver.  If you are looking for good bass strings, and you are comparing lots of brands and don't really know which ones to get, try these.  I've been playing guitar and bass for 25+ years and GHS Boomers are my favorite, by far.