Maybe "rev" is the wrong word, maybe it's "roll." Both it and the Timeless are rather consistent on the backend . . if you have the kind of revs they designed the ball for. The mistakes with these two weren't in design or execution, they were in marketing, and having people like Diandra saying that old people and young people, and dogs and cats and hamsters all needed a Timeless. The Timeless was ONLY good for me late in a longer format sweeper block when I needed something that was going to clear the heads and not really think about doing much until the end of the pattern, then it was great. It was however absolute nails for the crowd it was designed for, when people came in asking about it, the only two answers I gave were absolutely or absolutely not. The Drive is "better," mainly due to the Nano factor I'm pretty sure, but it blends the end of the pattern more and is rounder, but it's still a niche ball for anyone under a 500 rev rate