Cool, have you tried the cheese cloth to compare?...reason why I'm asking is if it's as good and it's as simple as reeling off a chunk and you're done, it may be worth getting some of this candle wick...
Yes, the cheesecloth wicks about the same but I find it to be more of a pain. Rolling it, cutting it, trimming the frayed pieces. Then it really puffs up so when you assemble one of the GG's it will fray the cotton a bit more as you tighten it all up. I could certainly use the cloth long term but the candle wick is so much easier.
Once you boil the entire 10 yards of the cotton candle wick and let it dry it's even easier to work with then the silica. No rolling or messing around you just cut and go. I would say it's actually easier to work with then the silica because it doesn't splinter when you cut it and doesn't shred when you assemble the GG's.

