Firstly, do you have any scripts I don't own? Cause if so ima buy them. The progress I've had with your scripts is incredible so please keep up the amazing work!
With this fletcher, I've found it 99.9% flawless, however, sometimes when it hits a fletch level it will basically freeze the script where the status will say "Stringing yew longbow" but because I've leveled up it wont press space or click to continue it will just sit there idling. It doesn't seem to do this with every level up though, but I would say it's maybe 30-40% of the time. I'm sure a wonderful scripter such as yourself could run a few tests and correct this easily. Many, many thanks