I find the notion of balanced tension bass strings intriguing, so when I needed a new set of roundwounds for my Fender American Standard Jazz I opted for a set of D'Addario EXL170BT They are nickel plated stainless steel roundwounds on a hex core. The winding is uniformly fine and about as smooth as any roundwound gets. This yeilds a reduced amount of string screech. Tone: Full & Highly Textured. Nice taut bottom end. No flab here as in many other roundwounds. A tight firm punchy bottom is the hallmark of a good flatwound and unusual to find a nice bottom in a round. Fat meaty midrange with plenty of beef; aggressive low-mid growl with snarling high-mids. A top end that barks and has plenty of bite. No uber-zingy nonsense. Overview: Excellent String-To-String Consistency Of: Volume; Tone, And Feel. Balanced Tension has really paid off! They played in quickly and hold their tune well. I've had this set on for a month of daily play and it's still going strong. I positively lothe the sound of a dead round, and ditch the roadkill quickly, so longevity in a roundwound is important.