I assume you'r looking for the tack of an Assy, right??
DON't attach to the pullpit...
Use a dedicated pad eye for it, preferably...it's the best solution, really.
As far as the
anchor roller, I have seen a guy that had his attached to the
anchor roller, and it bent the roller upwards...damaging it...but it depends on the roller, there's good and bad...how strong is yours?
Use a dedicated location..its best.