Overall It's rather awful on the harder difficulties, on lower difficulties you may call it OP when everything is so slow the knockback makes it easy, but get real, on lower difficulties everything is OP (such as a flamethrower) so I could never call this weapon overpowered in any way on HoE. It's rate of fire and reach is completely awful in every aspect, the knockback is negligible on HoE as the knockback itself wakes up any stunned opponent, may it be 2-3 gorefasts you knock back they are already back in your face and have to take imminent damage. As for scrakes and FPs, really? scrakes? the alt fire stuns the scrake just as axe/claymore/scythe, why in the world would anyone want to use the knockback feature on the scrake? As for FPs, It's not easy to juggle them properly especially in a game, I actually don't think its overpowered, in theory you can juggle them without taking damage, but in a game with other specimens around easily interfere and it's timely for a berserker to kill the fp. If you call the knockback on FPs OP for a zerk then you might as well cry about kiting the fp, takes just as long and easier to do without taking damage. It's more of a novelty weapon because at it's current state its performance is lacking compared to the claymore. My suggestion since it's just as strong as the claymore, keep the Alt fire at it's current fire rate (1.4 compared to claymore's 1.25) and lower its weak primary fire to 1.1 (compared to claymore's 1.05). that way it will actually be a decent weapon without being overpowered. it's horribad range is penalty enough (seriously you have about the same range as a machete when using it)