your knowledge is obviously much more than mine but I have read a few descriptions of these ski and they sound somewhat similar, Line say about the prophet 115:
Prophet 115 Description
Floats like a pow ski, rips like a carving ski
and lib tech say about the magic horse power NAS:
....Magne traction all-terrain shape that rips the hardpack and floats in the pow in both directions.
now to me, these seem at least similar in target, so what I was asking was, does anyone have any real world knowledge? if you do, please let me know.