When double blades is toggled on and the player attacks they lurch forward with their attacks causing the player to miss very frequently. This is even more noticeable when you enchant the double blades and it adds an extra attack causing the player to travel even FURTHER. I have watched my character miss entire attacks because they move too far past the enemy with the 3rd attack to the point that I feel enchanting the Double Blades is really a nerf. Plus even though your character is obviously moving this movement does not proc the "Dexterity" perk in the defensive skill tree. Even though that perk says "+20% dodge rate when moving" and the player is moving because of the double blades skill, the player doesn't gain any benefit.
My suggestion and request is to have the double blades movement not move the player so far when you attack with its skill. It's a detriment to a fun weapon, also maybe making it so that the Dexterity perk works with it's movement would be absolutely amazing!