In reply to EricWeisz:
Hi Eric,
It's worth noting that the shape of the tool is not as important for the actual climbing as many would think. With any reasonable axe you'll become skilled at using it.
Ergonomic tools e.g. Switch, Nomic, etc are great but there are a few significant trade-offs:
Difficulty using hammer and adze due to the curvature of the shaft.
It can be very difficult to plunge the spike in firm snow when effectively you have a jug handle
at the bottom of the axe.
You have to get quite creative to make symetric shapes when building a buried axe anchor.
You can work around all these things but is it really worth it when you could use something like a BD Viper, DMM Apex or Grivel Light Machine which are bit more versatile?