Thanks Godleydemon. I hadn't noticed The Process was for female transformations only, though in retrospect it's pretty obvious. That's fine though; I also write female AR and the story I linked to just happened to be male-only.
The 'no sexual acts with a regressed child' rule is also good because for me it's a major ick factor. This is a fantasy I prefer to keep as clean as possible.
So it sounds like the sort of stories I write would fit here; they tend to end as soon as character(s) finish their mental regression, which is a process of its own. Whereas you probably wouldn't be after content along the lines of, say, Detective Conan, which though it contains female regression, is entirely post-AR.
Thanks for your help.