Some anchoring points from "My" perspective...,...

Sometimes, all that's needed to get a recalcitrant anchor to fetch up,
is to add some scope .... haven't got a clue as to why, your experience
may vary.

When anchoring, always try to have at least 1-2k of sternway (backing at
1800 seems excessive, but waddahey, whatever works). When the anchor
fetches the line/chain will go taut and then slowly slack off, but if it
hasn't, it may go taut, slack, taut, etc..

When heaving an anchor, once the anchor is aweigh, if your chain/line is
led over a roller, or through a hawse pipe, the chain/line will wabble
from the roller/HP, down.

EG Some tidbits of potentially useless information.

otn