I have used a worm gear winch from the Dutton-Lainson Company for the last 8 years with no problems. Model Nr. 6312A or 5312A {poor eyesight !!} Raising a C/craft A3S + 40M addon. C/craft D3W Vine 4el for 6m Diamond X6000A Up an Aluma 60ft mast. 73 Steve ZC4LI.