Originally Posted by codprawn
If you have enough scope out the pull should be fairly horizontal - even more so if you use an angel.
are you not assuming that the anchor is actually pretty free to move. If the anchor is well dug in will the chain not just drift over the the top of it?
IF THE ANCHOR IS NOT SET HARD:
With a shackle at the stock this might break the anchor out but you then expect it to reset in the opposite direction. Likewise with some really tough cable ties.
BUT IF THE ANCHOR IS STUCK HARD:
With a shackle on the stock you just stay where you were - but with cable ties you risk them breaking which moves the load on the anchor to the "head" and breaks it out - but it is then unable to reset itself as the pull is not on the stock.