Daves subject regarding heat cycles got me thinking.

I know everyone says that Hoosiers will slow down after X amount of heat cycles, and the Kumhos/Toyos are more consistent throughout their life. Hoosiers are faster off the shelf but which is a faster tire when it is worn to the point of not being safe to drive anymore.? Are the Hoosiers still faster or would the Kumhos/Toyos be faster at that point?