I agree with one of the guys on that forum, every october we hire a 75ton Crian on our Quay and lift 16 or so boats up for the winter Now I would never let any of my staff stay on a boat whilst we lift! This is part of our lifting insurance that no one is on board! Also agree with another chap on there that yes some times we lash the strops with lines to stop them moving or try to provent them moving anyway. My heart only sinks deeper when we lift one boat which is a 42 year old yacht all wood and pricesless one off she is long keel and is very tricky to lift
Its strange beacuse the first pic looks fine, strop must have snaped.