My Excalibur Y25 with an STS, Cat Whskers and a Flemish string made from 452X is as quiet as it gets.
Huh?

X2, and read a ditty by Bill T on Excals, those limb savers can cost us up to 15-20 fps
for one set.
I see a vid from time to time w/ 'Unk Ted' w/ an Excal [sponsor] w/ two sets of limbsavers [sponsor]on it. Reminds me when TNUSA was free, lol.