OK, I see. As first leg before a step/slide (WFBR) only obliques other than N and leaps involving extenders (XY) would not work, and attention is payed to n (but not j). After a step (WF) only sliders and A, G, D, H, N and C-riders would work. And all this only in transitions between the first and second leg. Other combinations would give undefined effects. Later legs would keep the stride of the second, and can only change direction and range (1 or infinite).
OK, I see. As first leg before a step/slide (WFBR) only obliques other than N and leaps involving extenders (XY) would not work, and attention is payed to n (but not j). After a step (WF) only sliders and A, G, D, H, N and C-riders would work. And all this only in transitions between the first and second leg. Other combinations would give undefined effects. Later legs would keep the stride of the second, and can only change direction and range (1 or infinite).