Savarez Classical Corum High Tension Set, .025 - .044, Blue Card, Plain Carbon Fiber Treble/Corum Silver Wound Bass, 500AJstar rating 5geoff PennyDecember 28, 2009These are quality strings - the basses are fairly thin for their tension, making for a vibrant and clean sound - they are well wound with accurate intonation - carbon fibre treble strings are the future, being more resonant and lasting far longer than nylon - I used to change trebles every 3 gigs - now i get up to 8 gigs per set.