Force Sensitive Archive

Ok anyone who has any branch of FS crafting completly grinded, please respond. What is the fastest way to grind out that 1.2 mill fs crafting xp? With what profession and what item? Right now i'm doing heavy warheads with 735xp per warhead. Which leaves me with 16.333 warheads for my two crafting branches. How about we make a list of what item you think in your crafting profession gives the most xp and takes how much time in your tool to create.

My heavy warheads give 735xp and take 78 seconds.