Before suspension even existed?
How about before disc brakes?
Would you want to go back to any of that?
Well that's how everybody feels about the adjustable X-Fusion Manic seat posts. The ability to raise and lower your seat on the fly not only allows for the best possible performance but also offers extra safety while riding.
Being able to drop your seat before a technical descent could be the difference between cleaning the section or picking your teeth out of the dirt.