So, I looking at the stats of a german poleaxe reveals that it deals 42 cut damage normally on a swing. Thats very nice, very good damage.
But then you look at the secondary mode. 28 pierce damage. Better at penetrating armor you say? Yet at medium armor and up your always going to deal roughly 30% less damage than the cut side.
So basically, no matter how much armor the enemy has, the secondary mode is for looks, it has no practical use at all other than handicapping yourself.
I propose that the pierce side gets buffed into usefulness, so it isn't so damn inferior in all situations. The pierce side could lose bonus vs shields as a tradeoff.
And if you don't believe my fact that the pierce side is useless use the calculator prove it to yourself.
http://alpha-lider19.ru/MB/