I don't like to repeat scenarios but here's another Wolf SL Fork failure situation. I posted a similar one some months back [See previous post].
I found this on the Cervelo forum. The thread starter, Haroon said :
I bought my Soloist SLC-SL in March '07 (just over a year) ridden about ~6,500 miles and yesterday the fork failed. See picture.
I don't want to be an alarmist but no matter what top of the line bike you have - Cervelo or Colnago, carbon fiber will be carbon fiber. This scenario, in particular, is a pretty dangerous one and if you love your family... you would take precautions installing something like a fork with a carbon steerer tube. I'd always rethink which local bike shop I let handle the installation.
Someone from the same thread posted his own picture of Wolf SL fork nearing failure. The carve on the tube is what will eventually lead to a breakage. Take care, riders! I keep posting pictures like this to remind you that fork failures are not FUN! There is no sane reason whatsoever to risk life in order to enjoy your favorite sport.