Old men too weak to lift 100 feet of nylon rope plus an anchor insist on all
chain rode -- claiming it is safer -- because chain fits through an electric
windlass with less effort than tailing a rope on an electric windlass.

my mixed rode turned out to be a
nightmare to use with my windlass,

but ....

.... mixed rode has shock absorbing capability and all chain does not once the
wind picks up. At that point, wave action can put SERIOUS shock loads on the
chain, the anchor and the deck chocks.

Heavy seas require more scope

more scope does nothing at all to reduce shock loads once the winds have picked
up enough to pull the chain tight. That is the nature of the mathematics
involved.

and the use of a snubber to provide the
shock absorbing characteristics necessary to prevent tackle damage.

a short snubber don't hack it. nylon rope will stretch 3% to 5% before
starting to deform and an adequate snubber for windy conditions can require 10
feet - or more -- "shock load" movement room. five or ten feet of snubber will
break in short order.