Sorry Anindya, consider myself dumb but I didnt follow. May be I was dosing when I read your reply .

Could you please elaborate on the Class I branch flexibility. What should I read?

I found the Newsletter that answers the big diameter intersection issue. The issue was December 1998. This gives excellent insight on how to model a straight tee. Quiet impressed by it. But my problem is for a 45 degree Tee. Please go through the question in my original post as I think that the question is still not answered.

Thanks Anindya for directing me to proper source.

Dharmit