I tried the secondary on the regurlar poleaxe and this is what came out of it :
on the regurlar poleaxe, it knockdown good but it's slow, so i'd use in clustefucks, it would knockdown the enemy sometimes and do good blunt damage to tincans.
But the problem is if an enemy decided to attack me on one on one i would quicly be in trouble because of the slow speed
so it's only to be use when you gank an enemy, but if your enemy is already being ganked there's actually no need to join in the gank
if your new, try out the long hafted blade, it's got sweet animations, good range, good speed and good damage