Hello Davide - nice work.
Your video presentation is certainly one of the best I have seen - you've done your homework.
I would point out that there are in fact four (4) different Scotts locked Bowlines.
The one that you showcase is based on #1010 Simple Bowline with a
right hand nipping loop.
The nipping loop that you had initially formed in your video was right-handed (ie Z chirality).
Essentially, all knots have a mirror image version of themselves.
If you take your presented Scotts locked Bowline (with 'Z' chirality) and hold it up to a plane mirror - you will see a Scotts locked Bowline with 'S' chirality.
You can do the same thing with a #1047 Figure 8 eye knot.
Tie the F8 in your normal way, and then hold it up to a plane mirror.
The reflection will have opposite 'chirality'.
People tend to tie knots in a way that is influenced by their dominant hand (ie right-handed person versus left-handed person).
In your case, you tied Scotts locked Bowline with a right-hand nipping loop (ie Z chirality) - which leads me to think that you are a right hand dominant person!
With regard to the other variations of Scotts locked Bowline, they can be based on #1034 1/2 Bowline (ie tail outside of the eye).
So the starting base for Scotts locked Bowline can be either:
[ ] #1010 simple Bowline (tail inside the eye); or
[ ] #1034 1/2 Bowline (tail outside of the eye).
and...in both cases, there can be S or Z chirality
nipping loops.
...
Some other comments in relation to your video:[ ] PET knots are also easier to work with when tying around
larger objects - eg a large diameter tree or a large boulder. Also, some people have trouble estimating how much tail to allow for when tying an F8 knot into their climbing harness.
[ ] With regard to F8 propensity to jam - this can be related to the way in which the F8 is tied - in particular, the orientation of the SPart. Also, it is repeated free-falls on modern sub 9.0mm EN892 ropes that are more likely to jam.
Terminology:You use the descriptor 'eye' - which (in my view) is technically accurate.
Keep in mind that there are some IGKT knot tyers who will have
catatonic seizures when you use the term 'eye' instead of 'loop'.
They will be outraged - and potentially
shout and complain for allegedly daring to break with traditional knot terminology.
You will also pop up on their radar screens and potentially become a target.
I say
good on you - and well done!
Reasoning:A fixed 'eye' of knot has no particular chirality.
A loop has chirality - either S or Z.
ie... the 'nipping loop' can be formed as 'S' or 'Z'.
The 'eye' of a Bowline will not have S or Z geometry - its simply an 'eye'.
An 'eye' allows connections - that is, it is a
connective interface (rather like an eye bolt).
If you visit your local home hardware store and ask for a 'loop bolt' - the sales staff will think you are 'loopy'!
Instead - you need to ask for an 'eye bolt'.
The 'eye' of an eye bolt is an analog for the eye of a Bowline (or any other fixed eye knot).
Keep up the good work
