Ur anchor doesn't need zip tie. The anchor you r using for demonstrations is bad ass anchor. If u reverse the chakel will slide to the rear and u will be able to retrieve it.
I agree the anchor used to demo this does not need wire ties all you got to do is drive the other direction and it will slide up to the head of the anchor and pull it out
Dont do this overnight. If the anchor is dug in and the boat shifts sideways on the wind, the tie will snap and the boat will pull the anchor out..bye bye.
Only use this method shown here for a supervised anchor. I always power up over the anchor with light throttle but watch the bow for any signs of pull down and get into neutral quick. I have put the bow under before but if a wave catches you wrong you could get capsized. Watch it in the rough stuff especially but then you can let the waves do the job. If all that fails don't double down on power... cut the rope.
Sorry, Captain Sharky, I have to point out that you are doing something unnecessary. I know your proposed solution is the same as this one here ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Jn_lFhkJKME.html. However, the two fluke anchors are slightly different. The one in the aforementioned video has a dead tie of the chain to the butt of the anchor, and that anchor has to use his & your way to retrieve; but, the one you are using, exactly the same as mine, has a ring that can slide freely on the main shank which can easily avoid the issue we are tackling here. Just pull the anchor from the other direction (say by backing up your boat), and the ring will slide to the butt part, and the anchor will come out. Make sense?
When the Boat weights the anchor, The ring pulls to the end with the zip ties, And then it doesn't function the way it's supposed to. Captain sharkey is not so sharp