thanks RidgeRunner,
yep, i'm finding that simple rounded wood cabinet scraper does the job pretty well!
Dictionary,
harvesting the material, scraping stalks ,stripping fiber is what takes the longest...i'd recommend about 24 stalks for a bowstring..you may use less.
the twisting of the fiber into good cord takes Me a couple hours.
I twist it as TIGHT as I can and if i'm not happy with it....sometimes i'll UN-twist the string back and do some correcting.... so i'm kinda slow.