That early rise is what makes the ski work so well. It softens the moguls and helps the tip float in manky crud. The tip engages plenty well on hard pack. Fischer nailed that profile and shouldn't change it!
BTW... I keep my edges sharp from tip to tail. I don't detune and I have never had a problem with the tails being too grabby.
Last years you were kind enough to share some impressions about your Big Stix 110. No detuning on those either, out of curiousity?