We have the choice to prioritize craftsmanship or control for those 3 items. CP being easily capped (pre-capped on the body even).
Which to prioritize and why? And is it worth to wait for better availability of tier V craftsmanship to meld earrings, bracelet and necklace (who lack 3 craftsmanship from max each, if you don't care)? V tier could also be used for the guaranteed slot on main hand, offhand and both slots of body.
I only did the rings so far, and that sure dug a hole in my finances by itself. Even if the ring crafting was relatively cheaper than before (only about 800k cost if getting a seaborne HQ).