" working theses" = notions and speculation....theses require several levels of experimental or historical data fitting the hypothesis ( which is several levels above a notion) before being called a thesis or theory
Oh, I've got all sorts of data; I've read most everything published on the case. The Luray dump has slowly been working its way out of my working hypothesis since the bones were found.
You are free to employ whatever terminology you wish regarding notions, etc.