Hey wondersquid, thanks for the infos and the great pics!
I tried casting my daggers with Onyx fast too in the beginning but my blades are longer and thinner than yours so Onyx fast was too fast for them, it either thickened before it filled out the mold or got all bubbly because I poured too quickly.
The six daggers you can see in my belt in my previous post were cast in Onyx Slow and they came out really neat.
I wanted to ask you what silicon you used for the mold. My OOMOO shrank considerably and caused a couple of leakages...