i demoed them for about an hour (not long enough to get a good idea) and i really liked them...they had lots of pop and were very light...i also asked Steele what the difference was between the '06 and the '07 and he said the '07 is slightly thicker
i own a pair of the 06/07's centre mounted and have ridden about 40 or 50 days on them and they are still fine two small edge cracks, no delam, or other probs besides two small core shots but that was my fault