I have pipe cleaners and id jsut like to say they kill it not only on jumps and in the Pipe, but also in the all mountain catagory. I did not hit any rails on them tho so i cant say much about what would happen, but i have hit a few rocks on them when i was skiing at louise and thers not any deep scratches on the base at all.
I have had a few decent top sheet chips on them tho but its only cosmetic damage. But because of this topsheet the tails can often get destroyed in the lift lines. Ive got a few chips on my tails.
They are veeeerrrryyyy poppy and light weight and have a very low swing weight., they all round are a stiff ski because they are made for the pipe but you can still butter them fairly easily and are playfull once you get used to the flex.
I have not ridden the dumonts so i cant give u the answer of which ski to buy but i can recomend the pipe cleane to you.  any more questions you can pm me