It seems, then, that you're a flashcard consultancy that works with customers to optimize learning using SRS + something like http://www.supermemo.com/articles/

It seems, then, that you're a flashcard consultancy that works with customers to optimize learning using SRS + something like http://www.supermemo.com/articles/20rules.htm http://www.supermemo.com/articles/20rules.htm. Perhaps with more secret sauce. Are there studies you use to inform your secret sauce? Are they recent? I ask as someone who's been building a personal knowledge base of sorts of which one key component is Anki / SRS.