Translation of "Flaw" in Japanese

My technique is without flaw.

わたしのテクに抜かりはないわ。

Some ultrahealthy human who possessed not a single flaw

欠点がひとつもない 超健康優良児が

I can't find a single flaw in his theory.

彼の理論にはまったく欠陥が見当たらない。