It feels really good for once to get a clear uncomplicated result from these numerical excercises. Mostly, otherwise, it seems, every new variant is showing spectacular results indicating that this is the solution. We are learning to be aware of the risk of jumping to conclusions. Presumably the same kind of risk affects all new variants of more or less specific ideas. Everything need to be checked and rechecked once again, twisted and turned this way and that.

Now to this 'bent shark' matter. Focusing on this question I notice that the long sequence 5a contains a very clear mark of ending:

Certainly I must divide 5a into 5a1 and 5a2 by using this glyph. That way those 46 glyphs of 5a will be divided into 8 + 38. Though 5a1 perhaps should have 7 glyphs, starting one glyph later? This glyph perhaps should be relocated from 5a1 to 4c:

After all, Hb6-3:

has been in 6c already from the beginning. OK, that sounds reasonable. But I will take on that later. Just one step at a time.