Good for you for thinking independently,and neat execution,right on.It'd be interesting to hear how it works for her(i'd guess very well once she gets a hold of it).
As to it being "non traditional" i'd disagree,there were lots of asymmetric uluit (pl. of ulu in Inuktitut).
Even here, way up the Yukon,there's a number of types with a drawn-out forward point.
(admittedly not as radical as yours).