I'd be curious why you use nylon. "Because I wanted to" is a perfectly fine answer, I'm just curious as to if there are any properties you particularly need for what you're printing. I know when I started, I aspired to be able to print ABS. Now that I can (and have a roll), I struggle to work out why I'd need it. To the point I haven't bothered because of the disadvantages...and ASA that I tried (and used for something because it was the right colour) was a pain.
PET-CF I get. Used that because I really needed the 200°C temperature tolerance for a replacement part.
Nylon I think of for gears but I have heard that the friction coefficient of things like PETG-GF isn't that different enough to make that much difference.
Don't take this as some sort of "You're doing that wrong", I could print nylon, I'm just trying to work out WHY... otherwise I could end up with another roll in storage!