Dark knight VS HT.

My question pertains too, and what really worries me is can sacrifice hit all parts of HT? It has a pretty weak range, that mimicking of power slash or whatever the first job skill was.

I'm really concerned I'll be wasting another good 20 minutes spamming crusher on the arms/mid head. Although the mid head looks like I may have just enough to hit it. Arm's I'm really skeptical about though. Can anyone confirm?

Also a quick, less priority question is what parts should go down first? I'm assuming tail/legs/body first then move up from there?

Thanks.