I have been using Catfish but recently bought a used bow that came with a set of Threadz already on it.
When I got the bow I went through it, cam synch, axle to axle, and brace height were all good. It also had zero fuzz showing.
The string showed a lot of shots on it, the nock point on the center serving was so worn that I struggled to find a nock that wasn't too loose of a fit. I stripped off the old center serving and reserved it, as the string still looked really good.
That was about a year and a half ago. I have shot it a lot in that time, no idea on how many arrows but I have shot it a lot in practice, shot indoor with it, and multiple 3d shoots. I recently measured specs on it again and everything was in the exact same place as it was when I received the bow. My peep hasn't moved since I tied it in when I first got the bow.
They have been a fabulous set of strings, I have been pretty impressed with them. They still aren't fuzzy except for right around the center serving, from my bad habit of carrying the bow by the string once in a while.
I wouldn't hesitate to get another set of them.