Wow! As the original poster, I didn't realize I was opening up such a can of worms. It seems there are wrongs and rights to consider.

If someone has the time can you take a look at this video on youtube at the 1:13 mark and tell me if this was done correctly. From what I am reading in this thread it is not. Looks as if his one line is above the Tstat. Seems to me he is getting limited flow and only when the Tstat is open.
https://www.youtube.com/watch?v=XxuSGXqGnf0

My head hurts from all of this!!!!!!!!!!!!! LOL