Don't know if this would have made a difference, but I've been doing this for a while, and Herzog swears by it - to bend your siwash over and down. Put an offset on the siwash and bend the point end of the hook down and in, so it's no longer parallel with the shaft.

Herzog also swears by bending the barb down a bit (if you were using a barbed hook), so there is better penetration.

Odds are, you just had a bit of bad luck and hooked the fish either in a really hard place where the hook didn't penetrate, or a really software place that eventually tore out.

What's that old saying? Better to have hooked and lost than not hooked at all?