What is the story with replacing the TC with an electric AI?

I thought that had been generally prohibited in most/all a/c. There was
an effort to change that but I didn't think anything had happened.

Paul kgyy wrote:
Sporty's pilot shop has a nifty electric AI that can legally replace
your Turn Coordinator. That's the way I'd go if I hadn't already
installed an STEC in there.

The wet pump is another good alternative, though the gyros can still
fail.