Cool.
Would be nice to eventually make a thumb ring to replace my glove. I know Tim Piatek casted them out of some sort of resin.
I ended up buying that Ottoman Turkish hornbow making book by Adam Karpowicz. I've never made a selfbow, how long before I can make horn bows? :p Pretty interesting. Also has information on strings, etc. Didn't see much on arrows, except that apparently the lighter Ottoman arrows have better penetration than heavy English arrows on his tests?
With the string positioned in its proper place, the ring should exert pressure on the sides of the thumb knuckle, not on the flesh of the thumb pad.. [to avoid the ring pivoting and accidents]
Some other stuff about his preferred angle for the ring, about how to shoot with a simple lipped ring, having the index finger only cover the tip of the thumb, and that the index finger should not press onto the arrow/nock upon release to avoid fishtailing.
Hm. Adam wrote something about the string being not center-aligned
not being, ever, an attempt to make a bow more center shot, and that a horn bow should be shot the opposite side of the side where the string is close to, in order to help the bow align and not unstring itself due to twist. What about "korean tiller", then?
I want to raise my brace height on my Korean bow now. It's less than 6"... but it stacks more if I increase the brace height. I think 7" would be a good brace height in general.
The shape of the Turkish bows seem somewhat more appealing now..
I'm not sure about draw length, or why Ottoman archers chose to have a short draw length. Just because of the helmets? Or in order to have thinner, lighter arrows? What I don't like about a short draw is that the back muscles are used less, so it can be more uncomfortable, and there is less energy stored for the same draw weight. What I do like is that it seems to be easier to have an anchor point. I think I'll settle for 33" where possible.
edit: went shooting again and was way more consistent with having my arrow touch right under the lips/chin bone. and it didn't hit my face or anything. my arrows are very out of tune for my bow, though...