WARNING: This tie is highly experimental -- recommended ONLY for careful use by very experienced practitioners.
Here's a new design based on two premises:
- That the lower wraps should be the main concern in relation to radial nerve injury
- That the upper kannuki are not really needed for much
While to my mind these proposals are both far from proven, if one takes them to be correct, then this is the TK I think one would want.
The lower wraps are done according to the Version 3 CTK method; in my very limited testing with one bottom, this approach put the most noticeable amount of load on the lower ribcage in almost all positions, and was generally at least as stable as a traditional 2-rope TK. While for some bottoms the load on the ribs will be problematic as shown, tensions could probably be adjusted to put more force on the upper wraps and/or lower arms if desired.
How you attach support lines is very important to avoid the issue that Esinem succinctly illustrates...