I enjoy tying my own flies. That doesn’t mean I’m particularly good at it.
I’ve reached a certain level of acceptable competency with my tying, however — I have a few patterns down pat, and can tie them fairly well and fairly quickly (the latter is important, because I often find myself tying right up to the 11th hour before a fishing trip). That said, anything that can make my tying more efficient is something I’m interested in.