I normally buy the Double Silver High Tension Knobloch strings, keep the 3 basses and throw the Knobloch trebles into the bin. I always then use Savarez Cantiga High Tension Nylon for the trebles.
All new strings sound better, so one has to be careful. But. The Sterling Silver bass/middle sound makes me smile noticeably much more. Uncalculated response. Always a very good sign. But it’s the trebles that seem to be the revelation. With the Savarez I’ve noticed a slight dissonance at the 7th fret (D) harmonic on the 3rd (G) string. It’s as if the curve isn’t exactly true. But the Knobloch has much less dissonance. The Knobloch is a little bit less bright than the Savarez but is more mellow and liquid.
The “sterling silver” strings look exactly like the double silver. So, if you’re looking for a visual difference, forget it. But I’m content in my own mind that the sound quality - the thing that matters - is richer and wider and also more secure. To my ear (and left hand fingering) I feel a bit more confident.
I usually change trebles every 3 months and basses every 3 weeks, depending on practice and performing. Will these be cost-effective? We’ll see. I’ll happily stop drinking wine to enjoy the better sound quality! That’ll make it cost-effective. (hic!) Laughs. Alex