Just for laughs, and getting pretty sick and tired of soaking seeds in boiled
water, waiting a few days, repeating... I decided just to clip the side of an
albizia seed and stick it in the pot with no other preparation.
...and got 99% germination!
Albizia is a horrifyingly hard legume seed, and needs multiple soaks before it will bloat. But a simple clip of the side of the shell, and the seedling was emerging in less than a week - much sooner than the soaked seedlings were emerging.
Pictures show the clipping procedure, a closeup of the cut, and the emerging seedlings.