40# are safer. Where you drop er, is where you stay.

Let a 20# go, and the required rope, factor in some slide, and you might end up putting that 20 somewhere you never inteded.

Root balls eat anchors if they are 40 or 20......the rope tends to be the sticking point, not the lead.

Used to lose a 20# chunk o lead a year. Mr. 40# has lasted six seasons, but he is getting what one may call a "hammered finish".