I actually suggested this to my T and he said he didn't like to do it for himself, but would support me if I wanted to do it. That was strange :-) I ended up doing it just a little and was glad T was there becuase he helped guide me through the emotions when I got "stuck" ...

For example, the only time I did it, I was confronting my dad in the empty chair (who is still alive) and I locked up (the way I do in person). So T talked me through that with "What is that feeling now?" Me: Anger - RAGE... I want to just go over to him and hit his face! T: "Ok, stay where you are and don't back down either. Now there is another emotion under the anger. What is THAT emotion?" Me: Sadness and shame. T: Good. Now tell your father about that emotion.

It ended up helping but I never did it again because it felt too much like the real thing for me. But it is powerful work.