Yeah - this situation has already taken up a month. Mr. OC has been rerouted, redirected, aksed, told, confronted.... And yet each week is the same.

In the end I did send the letter, after I did a lot of editing - taking out all the lines where i felt i needed to rant or explain - and did send it to both T's and the 3 member's emails i had. Then was riddled with fear that i'd crossed a line or boundary, there would be consequences, i might get terminated.... Both T's told me they liked my letter; I was clear, non-accusatory, and strong. The two other members also felt it said everything that needed to be said and were glad i said it. The one who hogs group still felt that they didn't know what i was talking about or was taking too much time. I have decided this member is a lost cause, if after 4 weeks of talking about himself, he still has NO idea. Evidently the group T didn't know either.... so whatever. Next week is the last one, and I am glad.
Mr OC was rather pissy and moody - sulking all through group, saying little to nothing. Cest la vie.
Perna I'd like to send on your explanation to my other 2 group members for future =)
Thanks all for the support!