Winston, I compared the longevity of steel type and bevel orientation here:
http://www.inthewoodshop.com/ToolRev...tingPlane.html
and here:
http://www.inthewoodshop.com/ToolRev...eirBlades.html
The bottom line is that bed angle, rather than simply cutting angle, is a central factor in bevel wear. Higher beds create greater force on the edge, and this leads to greater wear. In short, even a lower bevel angle on a bevel up shooting plane (e.g. Veritas Shooting Plane) outlasted a higher bevel angle on a bevel down shooting plane (e.g. Lie Nielsen #51).
It would be interesting to redo this with the unicorn profile, but it probably would not alter the results. What it may do is improve longevity of the edge. The brief experience to date profiling the Veritas blade has demonstrated that it cuts as well as the unprofiled edge.