This is not a full report. I bought Mardi Gras Parade last fall (2021) from Sun Dragon Daylilies; I bought it largely because of Brian Reeder's assessment that it was rust-resistant as he had used it in his hybridizing program.
Since then it has increased from four fans to six, so it seems to be a fast increaser. I will add more later after it blooms.
Edit: The plant has bloomed and so far, it is a winner. Every bloom has been perfect, and there is no sign of rust so far. Love this one in the front of the border.