1. I think you've made your pointIt's not similar to Briggs, it is Briggs (in reference to the Wiki article).
2. The steps are very similar, but with some notable differences:
- In Briggs, CP is done with an 8-move 3-cycle, not a 3-move trigger.
- Briggs doesn't have pEO, which makes EO in YruRU much easier
- The way Briggs does EOStripe is different from YruRU. Briggs solves DB first, then EO and solve DF