The idea is to create a two entangled, crossing knot form of the figure eight, which appears to be less prone to jamming, than a conventional eight scheme.
The first phase is to flip one of the collars of the clasical 8 for the lowermost, first image formation, as i have pointed out in other threads too.
The second, more advanced step, is to insert the proper bight toggle, through this very 8-form, to showcase this particular, crossing knot geometry (uppermost, second,third image). No slippage occured with this loading option, with a rather easily adjusted returning structure, and no jamming issues.
The EEL quality emerges, if we denature the returning bight into a loop, by tucking WE back through the collar as usually.
Although not TIB, this reversed 8-based bowline (fourth image), has actually three rope diameters inside the nipping loop, with two returning collars that are easy to handle after heavy loading.