I will summarize the results seen so far; the Schroeder Method has been used now in dozens of systems and has resulted in 2 instances, both with headphone setups, where the outcome was considered marginal, but users still chose to use it over single IC, and the rest deemed clearly beneficial and very happy they tried it. The observations are piling up that it is not system dependent, or not nearly as system dependent as you think. i.e. It is considered to cause improvement in some rigs and degradation in others. If dozens of rigs show marked improvement, and two showed marginal improvement, and there has not been an incident of clear degradation, then the dismissal that, "In some systems this could be an improvement, not so much in others," is starting to face statistical probability of being an incorrect conclusion. Also, the guess that it all depends on the SUT [system under test] would not be correct.
There are now four makers of cables (TEO Audio, Audio Sensibility, and now ANTICABLES, as well as a smaller outfit on Agon; sorry, can't recall your moniker) that are making Schroeder Method ICs. I do not believe these people are opportunists, but are responding to customer request/feedback.
I have no interest in a lengthy argument about it. You will either accept the informal comparisons and observations of those who are trying, or you will stick with your impression of it. I imagine that if you would dismiss all these persons' conclusions you would say it is due to confirmation bias. If that is your position, given the additional information I shared above, then you likely will not try it. If you do not wish to try, we can simply be in disagreement, and I will move on to others who have expressed doubt, but are willing to try.
Are you going to try it or not? If you respond with ridicule or an attempted explanation of why it won't/can't work I will consider that a "no" and will move on. :)

