i stumbled across daddario's string tension guide


http://www.daddario.com/Resources/JD...sion_chart.pdf
brilliant.
pick strings that are within a range of about 5 lbs of pressure. and usually a little light (35-45 lbs) for the notes i'm tunning to.
the good stuff-
if i were going to get strings for c-g-c-g, i would get the following daddario strings:
xlb130 xlb085 xlb065 xlb045
you might need a slight truss rod and bridge hight adjustment.
Warning 1: string at your own risk
WARNING 2: DO NOT EVER tune this arrangement of strings to standard e-a-d-g, your bass will probably die. i mean it.