So I have some work travel where a RTW fare actually makes a lot of sense. I need to go to London for a week, then India for a week, then home. Since I am on the US west coast, the quickest way from India is via the Pacific.

Trying to use the *A RTW booking tool is a bit of a pain.

1) It forces me to stop in a third location (TYO or SIN) instead of just being able to come home. My understanding was that I only had to stop in two countries.
2) It loves to downgrade me. I am looking for a business fare but most of the segments it recommends are in Economy or Premium Economy (even though there is tons of D space). What is the cause of that?
3) Is there an easier way to book one of these?