Open up DemonHunter.cs, if you scroll down there's a section for Cluster Arrow that's commented as such. In the return statement, the second parameter is the range. He kind of sidesteps alot and runs circles around you so it's still kind of slow on DH as compared to a lesser geared Barb.
1. Find out number of games: 48
2. Find out difficulty: T4, ignore all the columns except T4 column.
3. What are you running for the 48 games per hour?
3a. Kulle (no quest no adds)? 48 x 2.6 million exp/hr
3b. Kulle (with quest no adds)? 48 x 10.4 million exp/hr, 48 x 46000 gold/hr
3c. Ghom? 48 x 13.1 million exp/hr, 48 x 63800 gold/hr
Not that hard. It just substitutes the glitchy exp/hr and gold/hr logs.