A Facebook friend sent me some Ragim Impala Limbs, which we were able to re-drill and cut down to fit on the Samick riser. The riser is twisted though, so it'll never be a brilliant bow but okay to play with.
i've never been much of a purist, especially when it comes to archery. everything has its own beauty, its own aesthetic. it doesn't matter to me if you're into hand-made primitive or sleek composites, combat, hunting or target. the end result is all about sending an arrow downrange.
Archery, Arrows & Arrow Flight - This page has a long discussion of flight mechanics and some good information about tuning up a modern recurve bow. Some of the information is also applicable to traditional longbows (but not the part about sights and buttons, of course). Pinning for reference to read more fully later.