[TowerTalk] Spiderbeam Construction Question

[Marshall Stewart]

How do the Kevlar guys from the boom and spreader attach to the mast so that
they will hold tension and not slip down or up?  The assembly instructions
seem to say to make a loop at the mast end of the guys and slip them over
the top and bottom of the mast and then slide them up or down to tension.
What keeps them from slipping down or up when the antenna is in service?

I'd appreciate a response from anyone who has a Spiderbeam up.  Thanks.