I'm a larger rider (only 5'5", 180lb) and have had problems with chin splints, and foot pains for the past three years. After getting the Driver X (per recommendation of others on this website) I can honestly say that I am "cured". This boot is to die for if you are slightly larger or need more support! I had a Burton Freestyle before, so I was no stranger to name-brand gear, but the Driver X is simply "amazing".
If you have gear like the Burton Custom-X and the P1 Carbon then you are in for a treat as you complete your ensemble. Its definitely worth dropping the cash for this one.