I had Prophet 80s that I used in the park and they worked well for a while but after 2.5 years or so they started to delaminate and the edge started coming out on the tail end of one ski. They were a great all around ski though.
i have the 07-08 chronic blend witch is extremely similar in construction and the dimensions are almost identical. they are very good in the park and have held up very nicely over 2 years skiing 30 times a year