I'm deliberating over the "standard" Rockshox Revelation Ti with an aluminum steerer tube and the World Cup version with the carbon one. May anyone have experience with this fork and/or an opinion about carbon steerer tubes' durability & longevity? Basically, the decreased weight of the World Cup is welcome, though I don't want to limit how I ride my bike. For reference, I ride primarily XC/AM, and rarely do drops over 2 feet. ...Thanks.