Well, taking away the first few steps of a slider (but keep the remaining moves blockable on those squares), and replacing those by leaper moves away from the path is a good way to make new pieces without altering the value too much. I did the same in the Silly Sliders army for CwDA, replacing the W steps of the Rook by F, and the F steps of Bishop by W, and the K steps of the Queen by N. If you also replace the second move of each slide by a direct leap, the value would probably increase (by about a Pawn), as those moves were blockable, and the leaps no longer are.
Pieces without any stepping moves are rather cumbersome to manoeuvre, though.
BTW, better to write afyafW than yafafW: the latter already changes to Rook after the first step, so it does W+R+R. This is still a minimum of 3 steps, but for larger distance the R+R part can be realized through many diffeent intermediate squares. (It really describes a 'degenerate' hook mover, with two sliding legs.) This would slow down the Interactive Diagram's AI, which is not clever enough to recognize the moves as the same, and would try to search all of them. With W+W+R there is always only a single realization.
Well, taking away the first few steps of a slider (but keep the remaining moves blockable on those squares), and replacing those by leaper moves away from the path is a good way to make new pieces without altering the value too much. I did the same in the Silly Sliders army for CwDA, replacing the W steps of the Rook by F, and the F steps of Bishop by W, and the K steps of the Queen by N. If you also replace the second move of each slide by a direct leap, the value would probably increase (by about a Pawn), as those moves were blockable, and the leaps no longer are.
Pieces without any stepping moves are rather cumbersome to manoeuvre, though.
BTW, better to write afyafW than yafafW: the latter already changes to Rook after the first step, so it does W+R+R. This is still a minimum of 3 steps, but for larger distance the R+R part can be realized through many diffeent intermediate squares. (It really describes a 'degenerate' hook mover, with two sliding legs.) This would slow down the Interactive Diagram's AI, which is not clever enough to recognize the moves as the same, and would try to search all of them. With W+W+R there is always only a single realization.