Silver wound gut = expensive, short lived, poor tuning stability, turn your fingers black, the outer windings wear through, come unwound and cut your fingers. Sounded wonderful on my dad's 18th c cello.... but even that has gone to it's new owner wearing tungsten wound steel.
If you have a really fine bass, unlimited funds and are hunting for that last 1% ..then go for it. But for ordinary mortals with sub £50k instruments, there are probably more cost effective ways to improve the sound.
My own bass (1880s German) has wound synthetics on it and my cello (1900 french) has gone tungsten. Just fine. Miss the attack and woody tone of the eudoxas I used to use... But not at today's prices.