Thanks for the interest Ride. I have been working on smaller versions and specialty rope working tools for a few weeks now. The basic spike is started from 3/8" square stock and forged and polished to a taper for a distance of 3" to 4" and a overall length of 6" to 8" This Seams to be the size that works well for most rope work. The twists and turns and shape of the handle is personnel preference.
I have been making a thinner version from 1/4" stock that is more of an awl or sometimes a hook like a stout crochet hook.