From what I've heard, the only problem with 2 dubs is they haven't played many matches where both guys were "on." One match Ore serves huge but Griggy doesn't return well, one match Griggy plays great and Ore has an off day. Line 1 and Line 3 have a lot more experience playing together, and it certainly shows. I think it's just a matter of time until 2 dubs puts it all together on a day to day basis. Bob and Steve are two of the best doubles coaches in the game, I'm sure they're working on some ways to find that synergy that Junior and Grig are looking for.