Interesting to note. Given that on the 26th, my primary anchorage system failed, dropping a frame a few centimetres as the tying line for my sheerlegs dropped onto the backup. No-one was hurt. No frame parts were damaged. But a new anchorage system was required which should be put to use tomorrow.

We had followed 1, and thankfully also 2 since regardless of the quality of your system, failure is always an option and at least one independant backup (able to take well above the expected load since a falling load exerts a far greater force) should be planned for.