I have an Ibanez SR 6 string that I bought used. The 706 has the original strings I think. My 3006E has some flatwounds (maybe half rounds) with some red string wrapped around the ends. What kinds of strings are these? They dont sound nearly as nice as the ones that were onthe 706, so I swapped the string sets. I just got into bass playing so know nothing about how to by strings. What came original? What should I replace them with? Can I replace just the main 4 (that get the most use)? I want a clean clear, brightish tone, so was considering D'addario XL nickel rounds. How bought gauge? So many options and choices? Help! Thanks in advance!