Games : Insect Glaive Upgrading and Progression

I am new to the Monster Hunter series and have started off using the Insect Glaive weapon as my weapon of choice. However when I have gone to upgrade the weapon there is a ton of information involving feeding the kinsect as well as levelling the weapon.

From what I have learned so far it seems that building speed into the weapon is the best way to build the weapon up, how do I do this, also what is the best way to distribute the elemental damage on the weapon?

Also is cutting or blunt insect better for damage etc