I can guarantee you that dual-boxing 1-60 with my strategy (having one main char that completes all quests) and the 2nd char only completing some quests and being RAF granted each time they slip behind, is MUCH quicker than someone dual-boxing 1-60 and both chars completing all quests.

The nominal amount of gold, lets say up to 20-40G, is dwarfed a few hours later when I am 70+ and earning way more than that, and levels ahead of someone that didnt use my strategy.

Anyone dual-boxing for speed (Speed Leveling), and completing the exact same quests on both chars should rethink their strategy. For speed, it's definitely not the quickest way to go.

I can confirm that the last brand new, non transfer server (Grizzly Hills WOTLK), I reached level 60 almost 10 levels ahead of the next RAF pair..