Gin pole made of an old spar and small winch and a couple of blocks. Allow single handed mast stepping operation. Unlike other systems the gin pole stays at a constant angle. A boom bail is installed on the mast to connect the line that goes to the winch. A nice guy at West marine explained this system to me. The extensible high crutch helps. Thus far, I have stepped the mast a 4 times single handed with no baby stays and I have not encountered major issues, e.g. routine minor untangling. I plan to add baby stays to make the system it bullet proof.