I like your proactive approach, Judy! I too am slowly but surely narrowing down those that perform best in the unrelenting heat and sun, just as I think Becky is making thoughtful adjustments to where her's fare best with rust. We are learning so much from each other, with garden environments that may never have received much studious support in the past. It is challenging, yet rewarding, to discover potential ways to accommodate daylily gardens in otherwise inhospitable conditions.
That is why I find sharing info here, as well as in the comments section of a daylily cultivar's database page, is so very helpful, and really appreciated when ATP members take the time to record and help out with their experiences. Performance for heat, sun, shade, rust/conditions, slow or fast increase, strong/floppy scapes, etc., all of those things are so very helpful to everyone, and add such value to the information that will be available in the future to those who want to study or learn from them.