It seems that the Eurosonics were originally made for rockabilly bass players but now many jazz bassists also use them. I offer the pros and cons of these strings and some things that I think Eurosonic should do to make them (or a seperate line of strings) better suited for the jazz/classical bassist. Here are the best things about the Eurosonic Ultra Lights... -The G string is a very nice thickness and feels and sounds very good. -They feel more like gut strings but still work with a magnetic pickup. -They have a decent sustain and a punchy fundamental sound (which is a combination that seems to be hard to find). -The Ultra Lights have a nice even feeling tension across the set. Here is what I think would make them the nicest strings on the market... -Make them bowable. Somehow there must be a way for Eurosonic to come up with a way to smooth out the bow sound. -Make the D, A, and E strings a bit thinner. The G is nice but the other strings get a bit "tubby" sounding. Maybe the answer is in the wrapping they use. Maybe they could find some other similar material to use to wrap the strings in that would make them more bowable and have a more organic sound that jazz and classical bassists will enjoy more. I know there are some J&R people or Eurosonic people that are on Talkbass, so maybe they will check this out.