I've heard Rocketbladez are longer, but only because of the decrease in lofts and the added shaft length. If you put those specs on other clubs as this review shows, there is no distance gain.
I've hit the Rocketballz Stage 2 3 wood in a simulator, and I was hitting it 20-30 yards longer than my gamer, a Ping G25. Problem is that it has at least half of an inch longer of a shaft. Hard to control. Just felt weird.