My preferred go to pattern is Fox SSBP, but I find they work best with a kicker. I wanted to try a simplify things and all the talk of the krank seemed worth a go, also I used to really like Carp R us off set nailers, I just cant cant them at my local these days. so I got pack of kranks.
I wouldn't be put off using kranks if they've been working for you, I think my problems were probably due to needing a few tweaks with the hair but as I didn't want to waste time tweaking or risk losing one next I went back to what Im confident in.
I agree hutch, the twisting was most likely during the fight though I don't think the point ever buried down more like due to the offset point it went through like a safety pin, then as it flipped over side to side during the scrap pierced again etc to create the nipple effect.