Hi All,   Cool thread!  I don't know why I didn't notice it earlier.   I'm near the end of a similar project.   I don't want to hijack Ralph's thread, so I'll wait and post my own thread later.  But, I like the building method.... very authentic.   A couple have authors have built "plains horn bows" using a wooden core.  Their bows look great, but are not authentic!!  As far as I can tell from my literature review the North American horn bows were always just horn / antler and sinew.  Of course there wasn't a lot of access to gemsbok horn, but I I won't quibble on that point.        Ron