[edit] What is the point of a Hybrid Spearman?

Hybrid spearmen seem like a dumb idea at first; you don't get final attack and you max out a weapon that you think you won't use.

However, maxing out both weapons gives a massive advantage in 3rd job. In 3rd job, there are 2 main attacks for a Dragon Knight, and those are Spear Crusher, and Dragon Fury. Dragon Fury will always be stronger with a pole arm because it always swings, while Spear Crusher will always be stronger with a spear because it always stabs.

The idea is not to switch weapons in the middle of battle, but to switch to another weapon when the map calls for it. For example, flatter maps would prefer Spear Crusher because stabs have a bit more horizontal range, while in hilly maps, Dragon Fury's swing motion would cover more vertical grounds.

http://strategywiki.org/wiki/MapleStory/FAQs