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Joyce and Paulowich have significantly ''three-step Dabbabah-Rider with the final leg bent.'' That would be different from DaDaDa, because the latter allows either or both legs bent. Like Joyce's, DaDaDa is enforced 6-step Dabbabah and DaDaDay, 'y' meaning optional, is 4- or 6- because of third leg option (whether bent or straight). Here, staying with just two for now, both can have 90-degree turn(s) en route. DaDaDa and DaDaDay are distinct and more liberal than that earlier Joyce's main three-stepper of six squares, to be compared later. Their footprints are different between the two of them. On one hand, DaDaDa on 8x8 from e1 reaches a3, c1, c5, e7, g1, g5; and other, DaDaDay reaches all those plus a1, c3, e5, g3. As Joyce and Paulowich certainly found out inventing the originals, the arrival squares are not automatic because these piece-types are not leapers. I.e., there has to be a pathway. To move e1 to e7, there has to be clearance at e3 and e5, and this 'e1-e3-e5-e7' is just a single one-path route; and further specifically only DaDaDay can stop on e5 at option, not going all the way to e7. Another example: 'e1 to g5' is three-path for both piece-types. The three pathways: e1-e3-e5-g5, e1-e3-g3-g5, e1-g1-g3-g5. Another: 'e1-c3' is two-way for Dadaday. They take no more getting used to than some Rook route d4-d5-d6-d7-d8, once knowing the natural move-rule. '8x8' is convenient, but these all are perfect p-ts for 8x12, 10x16, and 16x16. Once playing western Chess multi-pathers, any CV without at least one is like modern Xiangqi without Cannon: plain vanilla. (Most Sequentials are found to be also multi-path, the more likely the more component-legs.) The core Sequential Super-Class p-ts should be the many comprised of 'W and D' and 'F and A' and made from them, but there is no reason to restrict to those combinations of pre-existing pieces only. __________________________In furtherance of nomenclature, besides DaDaDa and DaDaDay, Bent Hero himself, who is become a compound, is alternatively called 'DaWay + WaDay'. That piece-name for Bent Hero is less Betza notational than Gilman nomenclative. Later to be considered is Joyce's notation. Gilman or others could cover Sequential piece-types in chapters let's say some 30-39, naming by ordinary repetition; but reduplication will be better mnemonically when there are different compound legs other than Wa-zir and Da-bbabah, which happen to have their common shared euphonic 'a'. Now Gilman at 13 has added a paragraph starting ''lemurian,'' Chapter13. Other sequential piece-type Reduplications: even steven, mish-mash, fancy-schmancy, double trouble, wingding, king pin.