Q:
Question on crafting ascended Armor
A:
http://dulfy.net/2013/12/12/gw2-ascended-armor-crafting-guide/
Only some pieces require the vision crystal. Others use the lesser vision crystal.
You only need a Vision Crystal for the chest, the 5 other pieces need a lesser Vision Crystal.
Thaddeauz [xQCx]- QC GUILD