I've got an XL650 and an SDB (which is older by far than the 650).  I tried to use the tool head stand with the SDB tool head and it won't sit on the post without falling over.  I had tried using the collar and setscrew, but it still doesn't stay upright.

Has Dillon Precision considered making a tool head stand for the SDB?  If so, I haven't seen it advertised, or if not, could they produce them, or maybe machine a post that would fit the existing tool head stand and installing it or making it a user option to interchange?