I'm not looking for a finite answer, as much as wondering if a 42-46 GB on the BC coast can get away with a combo rode.I do not think there is a firm point where all chain becomes more practical.
I've never had a situation where I could no retrieve all the tackle but I know people who have. It's usually been in an old booming ground or something similar. In reality, they should have known better, but...
There is a power cable strung across a local mooching channel where every few years they go down and collect a hundred or more anchors.
Edited to elaborate a bit...
"I've never had a situation where I could no retrieve all the tackle but..."
Once, I managed to put a pretty good bend in one fluke of a Danforth and twice, had to send a line down with a shackle big enough to slide over the shank so the anchor could be pulled out from the opposite direction.
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