The implication, Meridianpassage, of what the community may conclude from your multiple postings of the identical diatribe, by a new member, and bouncing a number of threads across SailNet (most of which are a number of months old), is not positive. From my perspective in light of recent protests courtesy of Anchor Buddy Ltd, its cause is quite obvious.
That notwithstanding, I'm not sure what the argument is about. The correctness of your belief that the Anchor Buddy will "double your anchor's holding power" is obviously entirely dependent on the anchor in question, not to mention the scope being used and the ultimate resistance provided by the seabed at the time. The fact that you state this belief but state neither the tested holding power of the anchor alone, nor even what it is, sounds very similar to the illogical claims in Anchor Buddy's marketing material, and speaks volumes.
Nevertheless, we can conceed that if it (the anchor) is a 2lb brick, then this may be the case and your belief is well founded. If the anchor is a sensibly chosen and well sized model according to accepted standards of seamanship, it is most certainly false and you are seriously misguided.
Catenary equations are not difficult to comprehend nor solve. The simulations above are achieved on a very simple Excel spreadsheet, and the math is well established.
Gravity is just not that powerful, and a heavy weight added to one's rode does not do a whole lot when large forces are present in that rode. It is difficult to argue with physics.
This thread in particular does not reference my article on kellets, so I will expand on the topic by linking to it here for those that are interested: